So I bought TM² Stadium, and lo and behold there is no engine sound! No matter what I do I can't get it to work, although I can hear ghost engine sounds.
Also the engine sound isn't working in Canyon either now that I checked...
Can't say I'm too surprised, but this is annoying as hell!

[CMC]Zell
Windows 7 64bit
CPU: Intel i5-3550 @ 3.3GHz | GPU: Nvidia GeForce GTX 570 | RAM: 8GB DDR3 1600MHz
SSD: Cruzer M4 128GB | Display: 22" 1080p native resolution