Do you have a large disposable income? Do you enjoy the Forza Horizon series? Do you enjoy racing games in general? Are you interested in the UK setting? Are you bored with your current games? Are you a steelbook collector?
There are way to many factors at play to judge whether it was a good idea or not.
RSC Name: Jackimo1999 | Xbox GT: Jackimo1999 ^Proof that Pundip is awesome
Just played the free demo, and I'm quite certain that it was a GREAT idea to buy the whole game. Fun little events, cool cars (obviously). The only thing is, that the map doesn't seem to be THAT big, but I might be wrong.
All in all, it seems to me that from October onwards, I have a great replacement for the racing part in GTAV. The cars feel arcadey or simulationey - just as you like it. (change assists in options/settings)
And no more curbboosts and brakeboosts. I'm quite happy.
So try the free, gratis demo for yourself, it's neat. Really. (I hope that link still works for you. Download is about 28GB or so.