BMW has dabbled with such prototypes ... to buy one would likely be doing so instead of an M3 saloon, rather than an RS4 or C63 estate. ‘You have to estimate how many customers you’ll get ...
In fact, a claimed 0-62mph time of 4.6 seconds is only three-tenths slower than the BMW M3. But take it easy ... If you go for the Touring estate body, you’ll have a practical family wagon ...