The mile is great. I used to work at a Viper shop in 2008. My bosses landspeed car (over 4000#) managed to squeeze out a 231mph inbetween constantly breaking transmissions trying to run the car anywhere near max boost (1725whp). I think these days guys are going another 20mph in the super cars.
I have no idea what type of MPH people are seeing in normal cars like a Z. On youtube there is a 640rwhp 350z that went 184. I would imagine a stock 370 to fall under 150.
There is, however, a very easy way for you to find out real quick
