My friend just got the speed delivered, it looks fantastic tbh, the front end is a little more upright now so its more Bentley and less MG which I always thought the old car hinted of a bit. Nicer front grills, the interior is a big improvement, this one was piano black done by mulliner, then the performance. The performance is a massive improvement on the GT too, however The Speed doesn't come in a GTC format yet, so I'm guessing the big difference is that you can't get a sun tan driving it like you can the GTC and for that reason I'd stick with the one you have, unless you live in England then swap it!!