This sort of thing?
A group of lads with these sorts of cars congregate in the Spring and Summer on the seafront close to where I live.
It is easy to make assumptions, but some of the upgrades are remarkable.
One lad had a Mk. 1 Astra with a 2.5 litre turbo charged Vauxhall V6 engine fitted.
The engineering of the whole car was superb and it was finished to concours standard.
OK; not to my taste, but the lad was a real enthusiast.