Convertibles you can fit a tow bar to.

[A500leroy]

Budget 5k, needs to be reliable,Petrol, prefer 2 seats, ideas?

[custardtart86]

They are few and far between. However, BMW Z3:

Unbraked Towing Weight 600kg
Braked Towing Weight 1200kg

Source:
https://www.parkers.co.uk/bmw/z3/roadster-1996/22-...

Autotrader has plenty in budget.

[littlebasher]

This did a bang up job





Ok, not a 2 seater, but a late one would be well under budget

[A500leroy]

Good suggestions, keep em coming

[pinchmeimdreamin]

May be a tad Over £5k though

[andrewcliffe]

What are you planning on towing?

[A500leroy]

erde 102 (450kg), just for tip runs/fetching white good/DIY shops etc. Just to make the whole soft thing practical.