Yeah, catching the ghosts is a bit harder than intended, because the car will drift out of curves but the ghosts aren't affected by them at all, so they escape really easily at that point. I've already fixed that and the balancing around refueling for a post-jam update. ;)
(The only thing that changes after catching a ghost is that the next one will be slightly faster, but it's not that noticeable one-to-one.)
I'll finally have decent time to try out more games now since it's the weekend, I'll check out yours soon!