Wow thanks for all your responses. Especially the long article, really appreciate the bit about launching as I had forgotten that from reading similar 5 years ago or so.
Well the test drive was fun, would have been more if I could have found more empty roads, but all things considered this things a beast. I see how it's possible to go through rear tyres as mashing the accelerator from rest has the wheels spinning and going nowhere, I think I would be a bit scared using this weapon in the wet.
Unfortunately though the dealer is trying to give me nothing for my trade in so it looks like I'm going to have to try to sell my current car privately first.
At least I had the test car to myself without the dealer telling me how fantastic the radio is. I highly recommend driving an SMG box for at least an hour to get used to it. As soon as the finances can afford there will be one in the garage and racing with the local BMW club on the track.
