They relate to regular races on balanced tracks - stunt races or more unique layouts will naturally have some cars suit better than others. The tiers attributed to vehicles on this website are constantly updated and tweaked, with help from some of the best racers in the community, to refine the general conclusions that can be made when combining results from lap time and top speed testing. Tier lists help to group together cars of similar speed in order for them to find use in an organised setting where they would otherwise not be viable, such that any group of racers can choose to limit their car selections to anything from, for example, the 'Sports C' tier and be able to have a good race with whatever is chosen. However given there are a lot of vehicles in each class there are often groups of cars that are close to each other on performance, despite not being close to the top cars in the class.
Supers, Sports, Muscle) have only one or two cars that can be used in a competitive setting because they’re so much quicker than everything else. When it comes to racing in GTA Online, most main classes (e.g.
