Tbh, imo, what with the congestion charge, the ULEZ charge, speed cameras, average speed cameras & the amount of traffic everywhere, much of the fun has been taken out of driving, even if you're lucky to have a 'fun car'.
That depends on where you live. I'm lucky enough to live in an area where there's usually an alternative route that doesn't involve going on the main roads. Nice winding, country, the odd single track road where you can see far ahead if anything is coming (which is unusual if you actually do), and away from the congestion, cameras etc.
When I go to/from work in Bromley to my house just outside Strood, there's a 'back way' that takes an hour rather than the normal 45 minutes, and most of it is country side rads, where I can have a bit of fun if I want to - but even when I don't have fun, it just makes a nice change to the traffic, boredom and monotony of A2/M25/A21.
Even more fun when I'm on a late shift, and can do the entire journey home at 0200 and count the amount of other vehicles I see on one hand
There's a big wide world out there away from London, and you don't have to go far to find it. It's sometimes worth setting the sat-nav to shortest journey and avoiding motorways and you discover roads local that you didn't even know existed.