Here is it --- Post updated --- only mod used was extra grip tires so i could get it going easier. there also is one for the skin but it doesn't do anything with performance.
The legit (no major gravity assist) was about 250mph if I recall right in a untuned pre thermals Bruckell moonhwak drag.
whats the fastest you've gotten in reverse? --- Post updated --- for some reason in reverse my tires blow out at like 180
Wait a minute... My most ridiculous speed is 11000mph in Negative Earth*. The car I used was the Ibishu Pigeon. *The game crashed after that.