Mercedes-Benz SLK Roadster gets a diesel engine (and returns 56.5 mpg)

It's a sign of the times - after 15 years of production of its retractable hardtop (vario-roof) convertible SLK series, Mercedes has given the compact roadster a diesel engine. The 204 bhp four-cylinder delivers fuel consumption of 56.5 mpg/4.16 L/100km (combined cycle), but thanks to the 2143 cc diesel engine's 500 Nm midrange and 7G-TRONIC PLUS automatic transmission, the car offers a 0-100 km/h (62 mph) acceleration time of 6.7 seconds and a top speed of 150 mph (241 km/h).

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