I remember seeing that in CKC, loads of these kit cars sadly don't have room for a v8, so zetec engines and 1.8t become a popular choice.
I been looking myself at a kit car, only one that floats my boat is the gt40 with the 5.0 v8, nom nom nom. Also only recently found out there was a DSG variation of the 1.8T, not sure what car as on the TT only the vr6 got the DSG, it was mentioned in CKC a few months back but never stated the donor car.