Essentially replacing the SL350 in the convertible’s lineup, the SL400 boasts the same 328 hp and 354 lb-ft of torque as the E400, since it shares the same 3.0-liter V6 engine. Compared to the naturally aspirated 3.5-liter V6 in the SL350, the SL400 will boast 26 hp and 81 lb-ft of torque more than the model it’s replacing.
Don’t expect to find the German automaker’s nine-speed transmission mated to the powerplant however, as Mercedes has opted to pair the V6 with its seven-speed transmission. The SL400 will accelerate to 62 mph from a standstill in 5.2 seconds, besting the SL350 by 0.7 second.
Historically the SL350 model was not offered in North America, with the SL550 being the entry-level option. That said, it’s not clear if the increased performance of this new SL400 will make it a viable option for the U.S. market.
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