I've had my 6spd Roadster on track a few times and have felt the rev limited kick in full force - feels like someone took my foot off the gas pedal!!

As for not wanting to see the tach go past 5,000 rpm - I've been on some VERY tight canyon runs where the only time I run the needle through the 5,000 rpm mark is when I'm slowing down!!! Canyon runs are sort of like autocross tracks with plenty of very tight turns, but instead of cones we have 1,000' drop offs!