i have a 91 lumina 4 door with a 3.1 v6 and an auto. It seems to be sluggish when taking off.

I work for a used car lot and we have a 93 and a 94 Euro lumina with the same engine. Both of them will burn the tires if you take off hard.

Is their a difference in the euro configurations or does my car just need a tune-up? Thanks for any advice you can give...