What a lovely machine you've got yourself there. Now that makes me want to save up for something myself, but 6000GBP is not something I will be able to afford anytime soon. Personally I'd love a second generation Impreza. Maybe someday. For now I'll have to do with my trusty corolla and the love of my life, my little Micra K11. I know it doesn't sound like much, and it isn't, but I truly love those light small little cars. She actually accelerates pretty decently at low speeds, but she gets tired fast at anything over 80KPH. Still, it's enough to get me to work and back, and have a tiny bit of fun. Despite all her flaws, I love her with all my heart. I only wish i had more money to take care of her. She deserves better. I did replace the brakes, oil, filters, and spark plugs though. That's the least I can do for her. I need to save up a bit and take care of her underside, she is very rusty down there. I want her to last as long as possible, my dream is to fix her up and then tune her a little bit. If I could move the battery to the rear, and maybe some other stuff as well, I'd have a bit of space to work with. I'd have to ask my car guy friend what would be the best way. Even a humble 90kW would be a massive increase from its current stock 60kW (not to mention it's a lightweight car, she doesn't need much to be nimble). I doubt the drivetrain would take any more anyway. Perhaps we could find some other Nissan engine that would fit without too much work and make more power, and then supercharge it.
It's all just daydreaming though. I won't be able to afford even to fix her up properly anytime soon, and even if I had money to do what I want to her, I hardly have the knowledge how to, let alone space and tools to work with.
Dreams are for free though.