I actually watched this ride for far longer than most other rides I download, it really intrested me because it's exactly the sort of thing I like, and it did so much well it just didn't quite feel right in places. I think it's the flow between elements, sometimes it felt like you placed all the elements then had to figure out how to join them up, rather than planning your way through the ride.
Nonetheless this was a really cool ride and great to see someone executing a nice compact X-Car!