Buick built just 678 of the range-topping GSX model for 1970. You will recall that GM's brands went cubic-inch crazy that year, when the corporate parent lifted the displacement limit for midsize ...

The 1970 Buick Skylark GSX had the biggest engine available and the best handling package installed while keeping the idea of having luxury inside with a comfortable ride overall.

Since he was young, Eric Stoldt has coveted the Buick GSX and when this 1970 Saturn Yellow example appeared he jumped at the chance to own it.

A rare 1970 Buick GSX Stage 1 is set to go under the gavel at Mecum Kissimee next month.

In one lane, we have a 1970 Buick GSX. The company introduced the Gran Sport in 1965, but the GSX bundle didn't become available until 1970.

Could a 1971 Plymouth Duster 340 outgun a rare 1970 Buick GSX Stage 1 at the drag strip? This quarter-mile encounter provides the answer.

Today, a 1970 GSX at a Mecum or Barrett-Jackson auction will go for $125,000 or more, proving that the GSX is a collector gem where touches of Buick opulence mate with lethal horsepower.

Shop Buick vehicles in Portland, OR for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 0 Buick models in Portland, OR.

Shop Buick vehicles in Cadillac, MI for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 0 Buick models in Cadillac, MI.

This video shows a rare 1970 Buick GSX Stage 1 lining up against a 1971 Plymouth Duster 340 for a factory stock drag race. Check it out at GM Authority.

Today, a 1970 GSX at a Mecum or Barrett-Jackson auction will go for $125,000 or more, proving that the GSX is a collector gem where touches of Buick opulence mate with lethal horsepower.