Solved

Constant Money loss

Two car leagues are very difficult to balance the books. Two driver wages and double the engine and parts requirements but exactly the same rewards as a one car team.

Also two drivers to replace when they retire is extremely costly.

I had to abandon two car racing after the Level 30 update dropped. Also my previously well supported two car league was closed because many of the competitors also moved to one car leagues.

I, and other volunteers have also raised this issue direct with the Devs many months ago, so don't expect anything to happen soon.

To be fair, introducing something to level out costs without being exploitable and hitting revenue for the game isn't easy. If parts, wages etc. were to be equalised, one car teams would simply enter 2 car leagues for a couple of seasons with low level drivers to farm cash and parts before moving back to one car.

So, for now 2 car remains a niche format, very difficult to manage resources until you reach high levels and are not constantly having to upgrade buildings and staff.