Rival leaderboards ranks per car

Add additional details to the existing rival leaderboards whichs ranks players based on car. This will hopefully encourage people to post times in different cars opposed to what’s meta.

Add filter leaderboard to filter on car.

So just a filter for current LB? Or option to set times in multiple cars in the same class + filter?

Filter(s) aswell as an additional column on main leaderboard to display car rank, which could potentially be enabled/disabled based on user preference.