Hello everybody

I recently purchased a 2002 Grand Prix GT with 104,000 km (close to 65,000 miles) on it and I was just woundering...

everywhere I look it seems I should be getting a 0-60 time of about 8 sec but I am getting on average of about 12 sec...what do you guys think?

Car runs 100% not a stich of problems, shifts great and I wouldn't have thought anything weird about how this car drives or handles except the 4 secound gap in times when I looked up the info before I bought...

Interested in any opinions