RWD Vauxhall Nova 2 door saloon

[ACE]

Nova shell MX5 underneath. Obviously this is a bad idea, because both Nova's and MX5's are rapidly becoming mega money.
..............................MX5.....................Nova
Wheelbase..............89.2.................... 92.2
Front track.............55.5.................... 52
Rear track.............. 56.2....................51.2
Kerb weight...970 kg/2138 lb....740 kg/1631 lb

[mitsuru]

Read this it is less than 48 hours old!
http://www.practicallyclassics.co.uk/viewtopic.php?f=3&t=3463

[Relentless Rob]

The biggest issues you'll have is the transverse engine bay of the Nova accommodating the longitudinal MX5 engine fabricating the gear box tunnel.

The SVA/IVA point scheme have virtually put an end to such shenanigans and it I were going to so much effort I'd pick an engine more suited to the type of build (a V8).

The Nova engine bay can easily take a Vectra V6 all you'd need to do is make sure the bulkhead is strong enough to take the extra power (a common mistake with Corsa V6 conversions, the bulkhead and mount brackets need to be seam welded and re-enforced).