A friend of mine does marketing and sales for a racing simulator called
hexatech, so I had the chance to play with it a bit
.
It's on some 4-6 hydraulic pistons, and the G-forces it simulates are incredible! Having eaten just before my ride in this thing, I fstarted feeling a bit queasy after 10 minutes or so of driving
, and had to stop after half an hour or I would've thrown up
.
Check the pics on the linked site (gallery -> a day at the office) for an impression.
It's the only serious simulator I've ever been in, so i can't compare it to anything
.