with 1200hp atw and just semi slicks, there is no way the mph can reflect the hp in this case. obviously there is a traction problem. you never know how much power u are missing out on until u go 4 a drive in an awd car. trust me i know !!!! thats why gtr's are so fast. even if that ford is makin only 800whp, 135mph is still low. twoogle ran 139mph and 9.95 with 500kw. all bout traction.