@Mark Pearce It is hard to recommend something as it is all personal preference. The best way is to test drive all of the cars/classes and see which ones you like. I would suggest that if and when you do purchase cars or tracks you use vRP which can be purchased here, https://www.raceroomstore.com/shop_en/list_page?cat=24 Also remember that if you buy any of the packs you only get the cars/tracks currently available. Any item added to that pack has to be purchased individually. Also you can only purchase a pack once.
Onboard highlights from first race of the ADAC GT Masters eSports Championship on Oschersleben circuit