Oh well, looks like I'm too late. But here's my advice anyway.

Any car manufactured before Jan 1st 1973 will have no road tax to pay, irrespective of engine size. Fully comprehensive, agreed value insurance at very low rates. Little or no depreciation. Parts will be uncomplicated and so very cheap. No on board computer means no crashes.....well not that sort anyway. And the added bonus that the manufacturing costs to the environment are spread over 35+ years and so means in the long run, your car will be far 'greener' than any modern hybrid.

So there!

Rog