- 1,244
- Illinois, U.S.A
- Mr_Lucky_Pants
- mrluckypants96
The max stock HP of an R390 GT1 is about 350HP, I have a book that says it has 549HP. Additional proof is from Supercars.net with a power with 549HP.http://www.supercars.net/cars/1391.html . Did anyone else notice this power deficiency?