The SL400 opened the R231 SL range in the US for 2015, its 329-hp 3.0-liter biturbo V6 giving the aluminum-bodied roadster a lighter nose and more agile character than the V8 cars. The folding hardtop, available Magic Sky Control glass roof and full S-Class-grade equipment carried over intact. It lasted two model years before a power bump renamed it SL450.
Specifications
| Year | 2015 |
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| Make | Mercedes-Benz |
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| Model | SL400 |
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| Engine | 3.0L 6-cylinder |
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| Horsepower | 329 hp |
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| Torque | 354 lb-ft |
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| 0-60 mph | 5.1 sec |
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| Top Speed | 155 mph |
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| Transmission | Automatic 7-spd |
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| Drivetrain | RWD |
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| Fuel | Premium Gasoline |
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| EPA MPG (City/Hwy) | 20 / 27 |
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| Original MSRP | $84,000 |
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The 2015 model year
The SL400 arrived for 2015 as the new entry point to the US SL range, with a biturbo V6 in place of a V8.
Mercedes-Benz SL400 by year
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