Tried a bit of Euro Truck 2. It was only £7.99 on cdkeys and the base game has the UK in it. It seems fine although obviously based around trucks. You can install a car mod which I did. The only annoyance is that you need to drive around to unlock a garage to buy the modded car from, also you need to earn the cash. I installed a more money mod which helped things a bit.
In terms of driving it’s okay, it has British roads with some basic road markings, but it’s not very varied. It has traffic lights, junctions, roundabouts etc. The main issue is that most of it is motorway, which is not that helpful. In each city there are some city streets you can drive down but they’re normally pretty limited. The traffic simulation isn’t that great, it seems a bit too gauged towards obeying the player. Traffic will give way to you from the right in a roundabout, which obviously isn’t correct.
Overall I’d say it was passable as a training tool. You can definitely practice things like positioning, turning at junctions, and roundabouts. Also when I get towards some motorway driving it might be helpful again.