Handy I just had an MOT on a 2L 16 V Corsa eh?

First of all, if the engine isn't changed on the V5 the garage may refuse to do the MOT at all. The garage I went to would have but I produced the V5. It is something to do with those new computerised MOT's.

Also, the emissions test is based on the engine, not the car, so the tester will ask what car & year your engine is from to determine what emissions you need to pass.