I dont think there is such a thing as a 1 piece. All that is avail is a 2 piece, one front one back. they are all moulded.
Main thing is to get the 80/20 Loop NOT the cut-pile.
80/20 is correct for your car. All suppliers basicly sell the same carpet kit, you will want one for a chevrolet impala/belair for your canadian pontiac.
DO not buy an american pontiac carpet, the floor pan profile may be different.
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Beaumontguru
MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH. The other one has a longer roof.
Plus one for NOS. Service was excellent to say the least.
x3
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Prince Edward Island
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.
a one piece molded carpet will be a cut pile carpet. The 80/20 loop material which is correct for your car is not wide enough to mold in one piece. The other problem with cut pile is the density can vary from manufacturer which can reduce the raw cost of the product. Lower quality; lower price