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Specifications Comparison: 2018 Nissan Altima vs 2021 Mazda 6

Researched By The AutoPadre Staff

Engine Horsepower & Torque

2018 Nissan Altima

Engine Horsepower & Torque

Trim Eng. Drive train HP Torque (ft-lbs)
S2.5L I4FWD179177
SL2.5L I4FWD179177
SL3.5L V6FWD270251
SR2.5L I4FWD179177
SR Special Edition2.5L I4FWD179177
SV2.5L I4FWD179177

2021 Mazda 6

Engine Horsepower & Torque

Trim Eng. Drive train HP Torque (ft-lbs)
Mazda Carbon Edition2.5L I4FWD227310
Mazda GT2.5L I4FWD227310
Mazda GT Reserve2.5L I4FWD227310
Mazda Signature2.5L I4FWD227310
Mazda Sport2.5L I4FWD187186
Mazda Touring2.5L I4FWD187186

Engine Horsepower Per Unit Of Displacement

2018 Nissan Altima

Horsepower Per Liter & Inch3

Trim Eng. Drive train HP Per Liter HP Per Inch3
S2.5L I4FWD711.17
SL2.5L I4FWD711.17
SL3.5L V6FWD771.26
SR2.5L I4FWD711.17
SR Special Edition2.5L I4FWD711.17
SV2.5L I4FWD711.17

2021 Mazda 6

Horsepower Per Liter & Inch3

Trim Eng. Drive train HP Per Liter HP Per Inch3
Mazda Carbon Edition2.5L I4FWD901.49
Mazda GT2.5L I4FWD901.49
Mazda GT Reserve2.5L I4FWD901.49
Mazda Signature2.5L I4FWD901.49
Mazda Sport2.5L I4FWD741.23
Mazda Touring2.5L I4FWD741.23

Gas Mileage

2018 Nissan Altima

Fuel Mileage (Imp.)

Trim Eng. Drive train MPG City MPG Hwy MPG Combined
S2.5L I4FWD273832.5
SL2.5L I4FWD273832.5
SL3.5L V6FWD223227
SR2.5L I4FWD263731.5
SR Special Edition2.5L I4FWD263731.5
SV2.5L I4FWD273832.5

2021 Mazda 6

Fuel Mileage (Imp.)

Trim Eng. Drive train MPG City MPG Hwy MPG Combined
Mazda Carbon Edition2.5L I4FWD233127
Mazda GT2.5L I4FWD233127
Mazda GT Reserve2.5L I4FWD233127
Mazda Signature2.5L I4FWD233127
Mazda Sport2.5L I4FWD263530.5
Mazda Touring2.5L I4FWD263530.5

2018 Nissan Altima

Fuel Mileage (Metric)

Trim Eng. Drive train L/100km City L/100km Hwy L/100km Combined
S2.5L I4FWD9.06.07.0
SL2.5L I4FWD9.06.07.0
SL3.5L V6FWD11.07.09.0
SR2.5L I4FWD9.06.07.0
SR Special Edition2.5L I4FWD9.06.07.0
SV2.5L I4FWD9.06.07.0

2021 Mazda 6

Fuel Mileage (Metric)

Trim Eng. Drive train L/100km City L/100km Hwy L/100km Combined
Mazda Carbon Edition2.5L I4FWD10.08.09.0
Mazda GT2.5L I4FWD10.08.09.0
Mazda GT Reserve2.5L I4FWD10.08.09.0
Mazda Signature2.5L I4FWD10.08.09.0
Mazda Sport2.5L I4FWD9.07.08.0
Mazda Touring2.5L I4FWD9.07.08.0

Gas Tank Size

2018 Nissan Altima

Fuel Tank Size

Trim Eng. Drive train Fuel Tank Size (Gal) Fuel Tank Size (L)
S2.5L I4FWD18.068.1
SL2.5L I4FWD18.068.1
SL3.5L V6FWD18.068.1
SR2.5L I4FWD18.068.1
SR Special Edition2.5L I4FWD18.068.1
SV2.5L I4FWD18.068.1

2021 Mazda 6

Fuel Tank Size

Trim Eng. Drive train Fuel Tank Size (Gal) Fuel Tank Size (L)
Mazda Carbon Edition2.5L I4FWD16.060.6
Mazda GT2.5L I4FWD16.060.6
Mazda GT Reserve2.5L I4FWD16.060.6
Mazda Signature2.5L I4FWD16.060.6
Mazda Sport2.5L I4FWD16.060.6
Mazda Touring2.5L I4FWD16.060.6

Gas Tank Range

2018 Nissan Altima

Fuel Tank Range (Imp.)

Trim Eng. Drive train City (Miles) Highway (Miles) Combined (Miles)
S2.5L I4FWD486684585
SL2.5L I4FWD486684585
SL3.5L V6FWD396576486
SR2.5L I4FWD468666567
SR Special Edition2.5L I4FWD468666567
SV2.5L I4FWD486684585

2021 Mazda 6

Fuel Tank Range (Imp.)

Trim Eng. Drive train City (Miles) Highway (Miles) Combined (Miles)
Mazda Carbon Edition2.5L I4FWD368496432
Mazda GT2.5L I4FWD368496432
Mazda GT Reserve2.5L I4FWD368496432
Mazda Signature2.5L I4FWD368496432
Mazda Sport2.5L I4FWD416560488
Mazda Touring2.5L I4FWD416560488

2018 Nissan Altima

Fuel Tank Range (Metric)

Trim Eng. Drive train City (KM) Highway (KM) Combined (KM)
S2.5L I4FWD7821101941
SL2.5L I4FWD7821101941
SL3.5L V6FWD637927782
SR2.5L I4FWD7531072912
SR Special Edition2.5L I4FWD7531072912
SV2.5L I4FWD7821101941

2021 Mazda 6

Fuel Tank Range (Metric)

Trim Eng. Drive train City (KM) Highway (KM) Combined (KM)
Mazda Carbon Edition2.5L I4FWD592798695
Mazda GT2.5L I4FWD592798695
Mazda GT Reserve2.5L I4FWD592798695
Mazda Signature2.5L I4FWD592798695
Mazda Sport2.5L I4FWD669901785
Mazda Touring2.5L I4FWD669901785

Legroom

2018 Nissan Altima

Legroom (Imp.)

Trim Eng. Drive train 1st Row Legroom (in) 2nd Row Legroom (in) 3rd Row Legroom (in) 4th Row Legroom (in) 5th Row Legroom (in)
S2.5L I4FWD4536.1
SL2.5L I4FWD4536.1
SL3.5L V6FWD4536.1
SR2.5L I4FWD4536.1
SR Special Edition2.5L I4FWD4536.1
SV2.5L I4FWD4536.1

2021 Mazda 6

Legroom (Imp.)

Trim Eng. Drive train 1st Row Legroom (in) 2nd Row Legroom (in) 3rd Row Legroom (in) 4th Row Legroom (in) 5th Row Legroom (in)
Mazda Carbon Edition2.5L I4FWD4238
Mazda GT2.5L I4FWD4238
Mazda GT Reserve2.5L I4FWD4238
Mazda Signature2.5L I4FWD4238
Mazda Sport2.5L I4FWD4238
Mazda Touring2.5L I4FWD4238

2018 Nissan Altima

Legroom (Metric)

Trim Eng. Drive train 1st Row Legroom (cm) 2nd Row Legroom (cm) 3rd Row Legroom (cm) 4th Row Legroom (cm) 5th Row Legroom (cm)
S2.5L I4FWD114.391.7
SL2.5L I4FWD114.391.7
SL3.5L V6FWD114.391.7
SR2.5L I4FWD114.391.7
SR Special Edition2.5L I4FWD114.391.7
SV2.5L I4FWD114.391.7

2021 Mazda 6

Legroom (Metric)

Trim Eng. Drive train 1st Row Legroom (cm) 2nd Row Legroom (cm) 3rd Row Legroom (cm) 4th Row Legroom (cm) 5th Row Legroom (cm)
Mazda Carbon Edition2.5L I4FWD10696
Mazda GT2.5L I4FWD10696
Mazda GT Reserve2.5L I4FWD10696
Mazda Signature2.5L I4FWD10696
Mazda Sport2.5L I4FWD10696
Mazda Touring2.5L I4FWD10696

Headroom

2018 Nissan Altima

Headroom (Imp.)

Trim Eng. Drive train 1st Row Headroom (in) 2nd Row Headroom (in) 3rd Row Headroom (in) 4th Row Headroom (in) 5th Row Headroom (in)
S2.5L I4FWD4037.1
SL2.5L I4FWD4037.1
SL3.5L V6FWD39.137.1
SR2.5L I4FWD4037.1
SR Special Edition2.5L I4FWD4037.1
SV2.5L I4FWD4037.1

2021 Mazda 6

Headroom (Imp.)

Trim Eng. Drive train 1st Row Headroom (in) 2nd Row Headroom (in) 3rd Row Headroom (in) 4th Row Headroom (in) 5th Row Headroom (in)
Mazda Carbon Edition2.5L I4FWD3737
Mazda GT2.5L I4FWD3737
Mazda GT Reserve2.5L I4FWD3737
Mazda Signature2.5L I4FWD3737
Mazda Sport2.5L I4FWD3837
Mazda Touring2.5L I4FWD3737

2018 Nissan Altima

Headroom (Metric)

Trim Eng. Drive train 1st Row Headroom (cm) 2nd Row Headroom (cm) 3rd Row Headroom (cm) 4th Row Headroom (cm) 5th Row Headroom (cm)
S2.5L I4FWD101.694.2
SL2.5L I4FWD101.694.2
SL3.5L V6FWD99.394.2
SR2.5L I4FWD101.694.2
SR Special Edition2.5L I4FWD101.694.2
SV2.5L I4FWD101.694.2

2018 Nissan Altima

Headroom (Metric)

Trim Eng. Drive train 1st Row Headroom (cm) 2nd Row Headroom (cm) 3rd Row Headroom (cm) 4th Row Headroom (cm) 5th Row Headroom (cm)
Mazda Carbon Edition2.5L I4FWD9393
Mazda GT2.5L I4FWD9393
Mazda GT Reserve2.5L I4FWD9393
Mazda Signature2.5L I4FWD9393
Mazda Sport2.5L I4FWD9693
Mazda Touring2.5L I4FWD9393

Turning Diameter & Radius (Curb To Curb)

2018 Nissan Altima

Turning Diameter & Radius (Curb To Curb)

Trim Eng. Drive train Diameter Curb To Curb (ft) Diameter Curb To Curb (m) Radius Curb To Curb (ft) Radius Curb To Curb (m)
S2.5L I4FWD37.411.418.75.7
SL2.5L I4FWD37.411.418.75.7
SL3.5L V6FWD37.411.418.75.7
SR2.5L I4FWD37.411.418.75.7
SR Special Edition2.5L I4FWD37.411.418.75.7
SV2.5L I4FWD37.411.418.75.7

2021 Mazda 6

Turning Diameter & Radius (Curb To Curb)

Trim Eng. Drive train Diameter Curb To Curb (ft) Diameter Curb To Curb (m) Radius Curb To Curb (ft) Radius Curb To Curb (m)
Mazda Carbon Edition2.5L I4FWD36.711.218.45.6
Mazda GT2.5L I4FWD36.711.218.45.6
Mazda GT Reserve2.5L I4FWD36.711.218.45.6
Mazda Signature2.5L I4FWD36.711.218.45.6
Mazda Sport2.5L I4FWD36.711.218.45.6
Mazda Touring2.5L I4FWD36.711.218.45.6

Ground Clearance

2018 Nissan Altima

Ground Clearance (inches)

Trim Eng. Drive train Ground Clearance Front (in) Ground Clearance Rear (in) Ground Clearance Min (in) Ground Clearance Max (in)
S2.5L I4FWD5.4
SL2.5L I4FWD5.4
SL3.5L V6FWD5.4
SR2.5L I4FWD5.4
SR Special Edition2.5L I4FWD5.4
SV2.5L I4FWD5.4

2021 Mazda 6

Ground Clearance (inches)

Trim Eng. Drive train Ground Clearance Front (in) Ground Clearance Rear (in) Ground Clearance Min (in) Ground Clearance Max (in)
Mazda Carbon Edition2.5L I4FWD6.5
Mazda GT2.5L I4FWD6.5
Mazda GT Reserve2.5L I4FWD6.5
Mazda Signature2.5L I4FWD6.5
Mazda Sport2.5L I4FWD6.5
Mazda Touring2.5L I4FWD6.5

2018 Nissan Altima

Ground Clearance (Metric)

Trim Eng. Drive train Ground Clearance Front (cm) Ground Clearance Rear (cm) Ground Clearance Min (cm) Ground Clearance Max (cm)
S2.5L I4FWD13.7
SL2.5L I4FWD13.7
SL3.5L V6FWD13.7
SR2.5L I4FWD13.7
SR Special Edition2.5L I4FWD13.7
SV2.5L I4FWD13.7

2021 Mazda 6

Ground Clearance (Metric)

Trim Eng. Drive train Ground Clearance Front (cm) Ground Clearance Rear (cm) Ground Clearance Min (cm) Ground Clearance Max (cm)
Mazda Carbon Edition2.5L I4FWD16.5
Mazda GT2.5L I4FWD16.5
Mazda GT Reserve2.5L I4FWD16.5
Mazda Signature2.5L I4FWD16.5
Mazda Sport2.5L I4FWD16.5
Mazda Touring2.5L I4FWD16.5

Height

2018 Nissan Altima

Height

Trim Eng. Drive train Height (in) Height (ft) Height (cm) Height (m)
S2.5L I4FWD57.84.82146.81.47
SL2.5L I4FWD57.84.82146.81.47
SL3.5L V6FWD57.94.83147.11.47
SR2.5L I4FWD584.83147.31.47
SR Special Edition2.5L I4FWD584.83147.31.47
SV2.5L I4FWD57.84.82146.81.47

2021 Mazda 6

Height

Trim Eng. Drive train Height (in) Height (ft) Height (cm) Height (m)
Mazda Carbon Edition2.5L I4FWD574.751441.45
Mazda GT2.5L I4FWD574.751441.45
Mazda GT Reserve2.5L I4FWD574.751441.45
Mazda Signature2.5L I4FWD574.751441.45
Mazda Sport2.5L I4FWD574.751441.45
Mazda Touring2.5L I4FWD574.751441.45

Length

2018 Nissan Altima

Length

Trim Eng. Drive train Length (in) Length (ft) Length (cm) Length (m)
S2.5L I4FWD191.915.99487.44.87
SL2.5L I4FWD191.915.99487.44.87
SL3.5L V6FWD191.915.99487.44.87
SR2.5L I4FWD191.915.99487.44.87
SR Special Edition2.5L I4FWD191.915.99487.44.87
SV2.5L I4FWD191.915.99487.44.87

2021 Mazda 6

Length

Trim Eng. Drive train Length (in) Length (ft) Length (cm) Length (m)
Mazda Carbon Edition2.5L I4FWD19216.04874.88
Mazda GT2.5L I4FWD19216.04874.88
Mazda GT Reserve2.5L I4FWD19216.04874.88
Mazda Signature2.5L I4FWD19216.04874.88
Mazda Sport2.5L I4FWD19216.04874.88
Mazda Touring2.5L I4FWD19216.04874.88

Width Without Mirrors

2018 Nissan Altima

Width W/O Mirrors

Trim Eng. Drive train Width W/O Mirrors (in) Width W/O Mirrors (ft) Width W/O Mirrors (cm) Width W/O Mirrors (m)
S2.5L I4FWD726.0182.91.83
SL2.5L I4FWD726.0182.91.83
SL3.5L V6FWD726.0182.91.83
SR2.5L I4FWD726.0182.91.83
SR Special Edition2.5L I4FWD726.0182.91.83
SV2.5L I4FWD726.0182.91.83

2021 Mazda 6

Width W/O Mirrors

Trim Eng. Drive train Width W/O Mirrors (in) Width W/O Mirrors (ft) Width W/O Mirrors (cm) Width W/O Mirrors (m)
Mazda Carbon Edition2.5L I4FWD72.46.031831.84
Mazda GT2.5L I4FWD72.46.031831.84
Mazda GT Reserve2.5L I4FWD72.46.031831.84
Mazda Signature2.5L I4FWD72.46.031831.84
Mazda Sport2.5L I4FWD72.46.031831.84
Mazda Touring2.5L I4FWD72.46.031831.84

Wheelbase

2018 Nissan Altima

Wheelbase

Trim Eng. Drive train Wheelbase (in) Wheelbase (ft) Wheelbase (cm) Wheelbase (m)
S2.5L I4FWD109.39.11277.62.78
SL2.5L I4FWD109.39.11277.62.78
SL3.5L V6FWD109.39.11277.62.78
SR2.5L I4FWD109.39.11277.62.78
SR Special Edition2.5L I4FWD109.39.11277.62.78
SV2.5L I4FWD109.39.11277.62.78

2021 Mazda 6

Wheelbase

Trim Eng. Drive train Wheelbase (in) Wheelbase (ft) Wheelbase (cm) Wheelbase (m)
Mazda Carbon Edition2.5L I4FWD1119.252812.81
Mazda GT2.5L I4FWD1119.252812.81
Mazda GT Reserve2.5L I4FWD1119.252812.81
Mazda Signature2.5L I4FWD1119.252812.81
Mazda Sport2.5L I4FWD1119.252812.81
Mazda Touring2.5L I4FWD1119.252812.81

Curb Weight

2018 Nissan Altima

Curb Weight

Trim Engine Drive train Curb Weight Horsepower Weight / Horsepower Ratio
S2.5L I4FWD3,212 lbs.179 hp17.9 lbs/hp
SL2.5L I4FWD3,254 lbs.179 hp18.2 lbs/hp
SL3.5L V6FWD3,462 lbs.270 hp12.8 lbs/hp
SR2.5L I4FWD3,258 lbs.179 hp18.2 lbs/hp
SR Special Edition2.5L I4FWD3,258 lbs.179 hp18.2 lbs/hp
SV2.5L I4FWD3,233 lbs.179 hp18.1 lbs/hp

2021 Mazda 6

Curb Weight

Trim Engine Drive train Curb Weight Horsepower Weight / Horsepower Ratio
Mazda Carbon Edition2.5L I4FWD3,582 lbs.227 hp15.8 lbs/hp
Mazda GT2.5L I4FWD3,582 lbs.227 hp15.8 lbs/hp
Mazda GT Reserve2.5L I4FWD3,582 lbs.227 hp15.8 lbs/hp
Mazda Signature2.5L I4FWD3,582 lbs.227 hp15.8 lbs/hp
Mazda Sport2.5L I4FWD3,437 lbs.187 hp18.4 lbs/hp
Mazda Touring2.5L I4FWD3,437 lbs.187 hp18.4 lbs/hp

Oil Capacity

2018 Nissan Altima

Oil Capacity

Engine Oil Capacity (Quarts) Oil Capacity (Liters) Viscosity
2.5L 4 Cyl. QR25DE4.9 Qts.4.6 L0W-20
3.5L 6 Cyl. VQ35DE5.1 Qts.4.8 L0W-20

No Data Available: 2021 Mazda 6 Oil Capacity

Battery Size

2018 Nissan Altima

Battery Size

Trim Battery Code Length x Width x Height
Standard359 1/16" x 6 7/8" x 8 7/8"

No Data Available: 2021 Mazda 6 Oil Capacity

Cargo Space: Trunk Volume

2018 Nissan Altima

Cargo Space

Trim Trunk Volume ft3 Trunk Volume m3
2.5 S Sedan Trunk Volume15.4 ft30.44 m3
2.5 SR Sedan Trunk Volume15.4 ft30.44 m3
2.5 SV Sedan Trunk Volume15.4 ft30.44 m3
2.5 SL Sedan Trunk Volume15.4 ft30.44 m3
3.5 SL Sedan Trunk Volume15.4 ft30.44 m3

2021 Mazda 6

Cargo Space

Trim Trunk Volume ft3 Trunk Volume m3
Trunk Volume15.0 ft30.42 m3

Timing Belt Or Chain

2018 Nissan Altima

Timing Belt Or Chain

Engine Belt Or Chain Interference or Non-Interference Replacement interval (miles)
2.5L 4 Cyl. 182 hp (QR25DE)Timing ChainInterferenceLifetime
3.5L V6 270 hp (VQ35DE)Timing ChainInterferenceLifetime

2021 Mazda 6

Timing Belt Or Chain

Engine Belt Or Chain Interference or Non-Interference Replacement interval (miles)
2.5L 4 Cyl.Timing ChainInterferenceLifetime
2.5L 4 Cyl. TurboTiming ChainInterferenceLifetime

Exterior Colors

2018 Nissan Altima

Exterior Colors

Exterior Color Name Exterior Color
Brilliant Silver [Silver]
Glacier White [White]
Gun Metallic [Gray]
Scarlet Ember [Red]
Storm Blue [Blue]
Super Black [Black]

2021 Mazda 6

Exterior Colors

Exterior Color Name Exterior Color
Deep Crystal Blue [Blue]
Jet Black Mica [Black]
Machine Gray Metallic [Gray]
Snowflake White Pearl Mica [White]
Soul Red Crystal Metallic [Red]

Interior Colors

2018 Nissan Altima

Interior Colors

Interior Color Name Interior Color
Charcoal w/Cloth Seat Trim [Gray]

2021 Mazda 6

Interior Colors

Interior Color Name Interior Color
Black w/Cloth Seat Trim [Black]

Steering Wheel Size

2018 Nissan Altima

Steering Wheel Size

Steering Wheel Diameter (inches) Steering Wheel Circumference (inches) Steering Wheel Classification
14 1/2"4 1/4"None

2021 Mazda 6

Steering Wheel Size

Steering Wheel Diameter (inches) Steering Wheel Circumference (inches) Steering Wheel Classification
14 1/2"4 1/8"None

Wiper Sizes

2018 Nissan Altima

Wiper Sizes

Driver's Side (inches) Passenger's (inches) Rear (inches)
2816None

No Data Available: 2021 Mazda 6 Oil Capacity

Compare the Nissan Altima All Specifications Side-By-Side by Year

2007 vs. 2013

2010 vs. 2022

2009 vs. 2012

2011 vs. 2019

2005 vs. 2003