This engine does have potential to be a good base for racing mods. What needs to be the main focus is getting the game running better / more interesting tracks and better physics.
Some of those reward tiers are nonsense and a waste of resources. How many of you are actually looking for stickers / toy cars for this product? If they get ONE backer at that 3000 tier they will have to invest a lot of time and resources to produce that nonsense.
I like JoshProd for some off the things they are doing, but this went a bit over the top again...