On the road not on a closed course or track. Every car I have ever owned I can tell you what the fastest it can go. The fastest top end car I ever owned was a Jaguar XJS...12 cylinder...It wouldn't go 0-60 in record speed...but it would go 60-120 in the same time it took yo go to 60. On route 80 from PA to NJ bobbing and weaving a few cars...just a few cars here and there...but when they are doing 60 and you are doing 152...it's like they are parked and you are doing 90...early around 6am on a Saturday back in 1981...