Lexus IS Lexus IS 2017 Audi A4 / S4 Audi A4 / S4 2018

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Lexus IS (2017) vs. Audi A4 / S4 (2018) Specs

How powerful is the engine? How much room is in the back seat? Get the 2017 Lexus IS and 2018 Audi A4 / S4 specs.

2017 Lexus IS and 2018 Audi A4 / S4 Specifications

Model Year 2017 2018  
Model Lexus IS Audi A4 / S4  
Engine 3.5L V6
DOHC-4v
306 hp@6400
277 lb-ft@4800
turbocharged
3.0L V6
DOHC-4v
354 hp@5400
369 lb-ft@1370
 
Transmission 6-speed shiftable automatic 8-speed shiftable automatic  
Drivetrain AWD AWD  
Body 4dr Sedan 4dr Sedan  
      Difference
Wheelbase 110.2 in 111.0 in -0.8 in
Length 184.3 in 186.1 in -1.8 in
Width 71.3 in 72.5 in -1.2 in
Height 56.3 in 56.2 in 0.1 in
Curb Weight 3737 lb. 3858 lb. -121 lb.
Fuel Capacity 17.4 gal. 16.9 gal. 0.5 gal.
Headroom, Row 1 38.2 in 38.9 in -0.7 in
Shoulder Room, Row 1 55.9 in 55.9 in 0 in
Hip Room, Row 1 54.3 in 0.0 in 54.3 in
Legroom, Row 1 44.8 in 41.3 in 3.5 in
Headroom, Row 2 36.9 in 37.4 in -0.5 in
Shoulder Room, Row 2 53.4 in 54.5 in -1.1 in
Hip Room, Row 2 54.0 in 0.0 in 54 in
Legroom, Row 2 32.2 in 35.7 in -3.5 in
Total Legroom 77 in (over 2 rows) 77 in (over 2 rows) 0 in
Cargo Volume 10.8 ft3 13.0 ft3 -2.2 ft3

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TrueDelta Reviews the Seat Room and Comfort of the 2017 Lexus IS

2017 Lexus IS Seat Room and Comfort: Pros
YearComment
2016 For me, the front bucket seats in Lexus F Sport models provide a nearly ideal blend of comfort and support. Even when they don't lack lateral support, the seats in competitors don't fit my form as well. Infiniti doesn't offer the Q50 2.0t in Sport form. The standard car's front seats provide little lateral support. The instrument panel appears larger and more imposing in the Infiniti than in the Lexus. Still, I wish the view forward were a little more open in the latter. (The Cadillac ATS is better in this regard.) Lexus lowered the driving position compared to the previous IS to help the car feel sportier. I raised the seat some to compensate. Adding all-wheel-drive to the Lexus IS (and a V6 engine with it, AWD isn't offered with the 2.0T engine) adds another issue, a large hump beneath the driver's right calf. Some drivers might find they have to adjust how they sit to avoid this hump. see full Lexus IS review
 

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TrueDelta Reviews the Seat Room and Comfort of the 2018 Audi A4 / S4

2018 Audi A4 / S4 Seat Room and Comfort: Pros
YearComment
2017 Before the 2009 model year redesign, the Audi A4's back seat was too tight for adults of more than average size, and marginal even for these. With the 2017 the back seat has grown yet again. Not only this, but the cushion is higher off the floor than in previous A4s or in competitors, such that it's now the most comfortable in the class. This said, the rear doors could open more widely, such that I struggled to get a decent photo of the rear seat. Since its 2014 model year redesign the Lexus IS has had a passably roomy rear seat, but it can't match the Audi's for comfort. see full Audi A4 / S4 review
2018 Audi A4 / S4 Seat Room and Comfort: Cons
YearComment
Pressed to come up with another con, I might offer the front seats. There's nothing bad about them. There's just nothing outstanding about them, either. Those in the sport-trim Lexus provide more lateral support and feel more comfortable to me. (With seats personal impressions are bound to vary, so definitely evaluate them yourself.) see full Audi A4 / S4 review
 

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