The BMW M5 has been teased through the design sketch only, which means the car will ... However, expect it to come with the BMW XM's powertrain, combining a 4.4-litre twin-turbocharged V8 engine ...

BMW's latest design sketch for the M5 reveals a slightly less ... Those grilles appear to be copied almost exactly from those on the XM SUV, as does the intimidatingly bulged hood.