Hi guys, I'm fairly new here so apologies if posted in the wrong place

In the title really , I'm lucky enough to have a budget of £8000 incl. insurance to spend on a second car.
Currently driving 1.6 zetec mk6 escort as daily
24 years old , 2 years ncb, my insurance is pretty low at full comp and other quotes have confirmed this

I'm looking for something fun for fast road and track use , and possible a potential investment

Been looking at
Mk6 fiesta st
Mk1 focus rs
Various capri's , mk2 fiestas

I'd love a mk1 escort but think itd be outside my budget

Opinions please on what you would do ?
Thanks in advance