Thanks, is it F1 only cars or are there the other divisions like Formula E, Formula 2, etc?Yes, it is not 4k. Not sure about your converter, google that one.
It is in the same vein as forza and GT and it is definitely fun.
Is there much online racing?It's only F1 cars, however, you do get some "classic" F1 cars to play with and are quite different from the current gen of F1's. It is a fun game - I especially enjoyed the career mode. Having tasks to complete during a GP weekend and R&D'ing parts - some which work out some that don't. It's definitely not a perfect game, to me anyway, but it is very fun and immersive if you let it.