Joined this discussion a bit late. I can't imagine life without a Lotus seven style car of some sort. Just what you need to complement an Omega. Excels at everything an Omega does badly and vice-versa.
But seeing as Mk2 Escorts are a bit thin on the ground (at reasonable prices), and Sierra's are starting to get the same way, how about using an Omega that's getting ready for the scrapper? Now then... undecided
If I were to do it again and I wanted a single donor vehicle I'd go for Westfield's MX5-based kit. The parts on an MX5 are already nice and light, the gearbox ratios are nicely sorted for a lightweight car (Omega ratios would be dire in a Seven) and MX5 mechanicals are bomb proof. Part of me is having unclean thoughts about an X30XE in a seven though. [smiley=evil.gif]
Assuming I could afford another fun car on top of that - well, there are loads of classics I'd love. Where do I start? Lotus Elan / Europa / Cortina / Carlton, Ford Escort Mk1/2, Cortina mk 1/2/3, Consul, Rover P5B/P6/SD1, Triumph TR4a/TR5/TR6/Dolomite Sprint/2500Pi, BMW2002, 3.0CSL... In fact, pretty much any classic car seems attractive compared to the uninspiring boxes on the roads today.
Just watched the whole of "life on mars" on DVD and it's great just for the classic cars.
Kevin