Hi why bother with a remap when the new car will perform as well as your old car if not better, its all about how the torque curve is used on the existing map, I think you may find there is only a marginal difference in some aspects of the new cars performance especially when the newer engine has an extra 200cc which is a whole lot more to play with, go to the other end and in the early eighties Lancia did a Lancia Y10 three cylinder Turbo which at 1ltr was capable of over 105mph with a very respectable 0-60.
Steve.