BMW Z4 vs Mercedes-Benz SL-Class Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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Specs

Interior
	2025 BMW Z4 2.0 sDrive20i M Sport	2026 Mercedes-Benz SL-Class 2.0 SL43 AMG Premium
Powertrain	8-speed Automatic	9-speed Automatic
Drivetrain	RWD	RWD
Fuel economy, city	--	--
Fuel economy, motorway	--	--
Fuel tank volume	197 L	265 L
Engine
Fuel type	Petrol	Petrol
Power	145 kW	309 kW
Torque	434 N-m @ 4,200 RPM	678 N-m @ 5,250 RPM
Cylinders	4 cylinders	4 cylinders
Engine size	1,998 cc	1,991 cc
Maximum seating	2 seats	4 seats
Front legroom	--	--
Rear legroom	--	--
Exterior
Length	109.83 m	119.38 m
Width	51.41 m	53.34 m
Height	33.12 m	34.52 m
Wheelbase	62.74 m	68.58 m

2025 BMW Z4

2.0 sDrive20i M Sport

2026 Mercedes-Benz SL-Class

2.0 SL43 AMG Premium

2025 BMW Z4

2.0 sDrive20i M Sport

2026 Mercedes-Benz SL-Class

2.0 SL43 AMG Premium