Quote:
Originally Posted by bennylava
What are the characteristics of both these tire sizes? It would seem that the larger tire was considered to be an upgrade. Was there no advantage to the smaller tire?
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No advantage to the consumer, other than keeping the initial vehicle purchase price down.
As a manufacturer you take the cheapest tire you can offer and use that as base. Any tire savings is multiplied by 5 (or by 4 for those vehicles that do not get a spare) so it adds up.
Yes - the larger tire is an upgrade and therefore additional cost to the customer and more revenue for GM. Tire prices are shown in the info packet I linked; it cost me an additional $250 to opt up to the P235 tires on my '87.
K