What Buick did to leapfrog the competition was remarkable, and this example of a 1970 Buick Skylark GS 455—being auctioned ... up to 10 with a tri-spoke racing steering wheel, gauges in chrome ...
Between 1968 and 1970, Buick joined two of GM's other divisions in unveiling 455 ... racing. Its upgraded heads, bearings, pistons, and Carter carburetor added more than $3,100 to the GS's cost ...