Powertrains and Performance
A supercharged 5.4-liter V8 (which is mounted behind the front wheels for optimal weight distribution) powers the rear-wheel-drive 2009 Mercedes-Benz SLR McLaren with a visceral 617 hp and 575 pound-feet of torque. The SLR 722 produces 650 hp. A widely spaced five-speed automatic transmission translates the engine's brute force into motion. Steering-wheel-mounted buttons enable the driver to shift manually. A brief 3.8 seconds is all it takes for this supercar to rocket from zero to 60 mph, and the top speed for the SLR is an F1-worthy 206 mph. Powerful carbon ceramic brakes and a rear air brake help to bring this beast from 62 mph to a halt in a respectable 114 feet. EPA estimates -- if there's a potential buyer who cares -- come in at a predictably low 12 mpg city/16 mpg highway and 13 mpg combined.
Safety
Although no crash tests have been performed on the 2009 Mercedes-Benz SLR McLaren, its construction promises a very high level of occupant protection. Carbon fiber, which is extremely light yet strong, makes up a large portion of the car's structure. Steel-reinforced A-pillars and two fixed rollover bars protect the driver and passenger in the event of a rollover. Other standard safety features include airbags, knee-protecting airbags, Mercedes' TeleAid telematics system, stability control, traction control and antilock brakes with brake assist.
Chassis | |
Brakes F/R: | ABS, vented disc/vented disc |
Tires F-R: | 255/35 R19 - 295/30 ZR19 |
Driveline: | Rear Wheel Drive |
Engine | |
Type: | V8, Supercharged |
Displacement cu in (cc): | 332 (5439) |
Power bhp (kW) at RPM: | 617(460) / 6500 |
Torque lb-ft (Nm) at RPM: | 575(778) / 3250-5000 |
Redline at RPM: | 7000 |
Exterior | |
Length × Width × Height in: | 183.3 × 75.1 × 49.6 |
Weight lb (kg): | 3897 (1768) |
Performance | |
Acceleration 0-60 mph s: | 3.8 |
Top Speed mph (km/h): | 207 (334) |
Fuel Economy EPA city/highway mpg (l/100 km): | 13/18 (14.8) |