Only my personal opinion but, i've had 2 VW trikes both rear engine..............never have one again, i just didn't like the way they handled at all.
Not sure if there is an auto gearbox out there that could be made to fit a Reliant motor.
There is the option of a VW engine trike with the engine up front, i have all the info and frame plans
Apart from that any rear wheel driven car will do the job, i've been collecting plans and info on every type and make of trike for the past 9 years and if i've not got the info then i can normaly find it.
This is what a VW engine up front trike looks like :lol: :lol: :wink:
Triker meeting
Triker meeting