Quote:
Originally Posted by L78toLT1
Engine codes are alphanumeric, two letter/one number combination. There are only 6084 of these. No wonder they have recycled LT1 so many times!
In all seriousness, with an effectively infinite number of combinations, it is perplexing that certain combinations are reused.
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RPOs are a bit more limited than that, though. For example, engine codes always start with L - LS1, LT1, LQ4, LMG
Lxx - engine
Mxx - transmission
GUx - axle ratios
Zxx - performance/appearance package
Paint codes might be Gxx but I’m not sure on that. If so that gives 1,296 possible combinations - less considering other established codes like GU6 or G80.