Mercedes has officially unveiled the 2013 SL-Class at the North American International Auto Show.

Mercedes has officially unveiled the 2013 SL-Class at the North American International Auto Show.

Featuring an all-aluminum bodyshell, the roadster has an evolutionary design which borrows a few cues from the SLK and SLS AMG. Notable highlights include a single bar grille, oversized headlights and a lightweight hardtop which can be raised or lowered in less than 20 seconds.

Inside, the cabin is elegantly appointed with leather seats, wood trim and metallic accents. There's also a 7-inch COMAND display and a new Frontbass system which has speakers in the footwells for "a concert hall ambience even with the top down."

Under the hood, two engines are available. The entry-level 3.5-liter V6 develops 306 PS (225 kW / 302 hp) and 370 Nm (273 lb-ft) of torque. It enables the car to accelerate 0-100 km/h in 5.9 seconds and average 6.8 L/100 km (34.6 mpg US / 41.5 mpg UK).

The SL 500, on the other hand, uses a 4.7-liter V8 with 435 PS (320 kW / 429 hp) and 700 Nm (516 lb-ft) of torque. This allows the convertible to rocket from 0-100 km/h in just 4.6 seconds.

In Germany, the SL 350 BlueEFFICIENCY will be priced from €93,534 while the SL 500 BlueEFFICIENCY starts at €117,096 (including 19% VAT).

Check out the press release for additional information

2013 Mercedes SL unveiled in Detroit [video]