Have you guys thought about adding a racing programme to the game? Making and selling race cars? By racing programme I mean like once you have way too much money you could do few special events where you need to spend metric tons of money (le mans, F1, nascar etc.) to develop and sell a racing car. Or run it by yourself. Having such system could add nice marketing aspect into the game.
Also since you have engine dyno have you thought about adding wind tunnels and suspension shaker rigs?
We'd LOVE to do a factory race team manager aspect, It'd be a future expansion though I'd say, we need to finish the basics of the game first.
Wind tunnels we've considered, and would love at some point, but probably don't have time. Suspension shaker rigs is a new idea though, and would probably show off our suspension physics nicely (we'll have a think on that one)
how many games have there been (in the past decade specifically) that let you take some shitty motor and toy with it, blow it up, and then make it like a multi ten thousand dollar engine! lol