R5gtt, 182, volvo...
if it's a trophy, vee or liquid yellow variant.
... Still, with the exception of the vee, they won't gain much value.
When I was 20 Renault 5gtt's had 60-80k on them and around the £3000 mark.. A friend sold his for £800 with 70k and by today's standards would be a minter.. They've floated around the 1500-3000 mark for the last 10 years and it's only now that they have gone over 5 for good ones, higher for minters and stupid £ for low mile minters at dealers..
From 1985 went from small engines with turbos for 10 years, then big engine hot hatches. Another ten years on and small turbo engine or fuel efficient ones are back in.. This is not important but leads to the natural progression that is electic, which is already happening.
In ten more years you won't have petrol hatches or the numbers will be dwindling fast, which means right about the time the Clio hits 20 it'll be old, rare and using the old fuel of the past..
Perhaps that isn't the timeframe it'll happen in, but that train is already running, it's not gonna happen, it's happening.