What's the difference between car models?

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Grand Prix Differences in Base and GT
When purchasing a new or used vehicle, it is important to understand that there are differences within each specific model. The Pontiac Grand Prix is a four-door sedan that stopped manufacturing the GT trim in 2007. Although this is the case, when purchasing a used Pontiac Grand Prix, there are differences to consider between the base and the GT trim.

Basics and Powertrain Differences
The manufacturer's suggested retail price (MSRP) of the base model is $21,815 while the MSRP of the GT trim model is $24,735. Although both are 3.8 L, V-6 engines, the base trim produces 200 horsepower while the GT trim kicks it up a notch to 260 horsepower. The base trim fuel economy rating in the city, at 20 miles per gallon (mpg), slightly outdoes the 19 mpg for the GT. Similarly, the highway ratings are 30 mpg and 28 mpg, respectively. The axle ratio for the base model is 3.05, 2.93 on the GT.

Interior and Convenience Differences
Front and rear reading lights, a mini overhead storage console, a cargo net, radio steering wheel controls, a voltmeter gauge, compass, exterior temperature, trip computer and a leather or metal look for the steering wheel material are all standard with the GT model. Each of these features are options that can be selected for the base model.

Weight and Exterior Differences
The base trim model is slightly lighter than the GT model with a curb weight of 3,477 pounds in comparison to 3,484 pounds. The exhaust is stainless steel on both models, but the GT model has a polished tailpipe finish. Driveline traction control is available for the base model as well as a four-wheel anti-lock brake system (ABS), but these are separate for-purchase options on the base; the driveline and ABS comes standard with the GT model. The base trim has 16-inch alloy wheels and has leather as an option for the gear shift knob, while the GT model has 17-inch wheels and comes with a leather gear shift knob standard.

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