The luxury roadster has now begun its winter test programme after coming to grips with heat testing. The new SLS will sport engines such as the 5.5-litre V8 with 285kW (387hp) and possibly the rumoured 400kW (544hp)-plus 4.0-litre twin turbo. These should be mated to a 7-speed automatic as standard. We might even see a hybrid powertrain adapted from the Mercedes S400 Hybrid. Sales will begin sometime in 2012.
