(Delete if not allowed, didn’t see a rule it might break so I thought it would be okay)

This is a bit of a longshot but I have been trying to find the name of a very basic and simple browser MMORPG I used to play maybe in 2010. It seemed pretty popular with full servers. It was like ps2 GTA San Andreas era graphics of customizable human avatars running around a small map and talking to people. One of the maps was a basic coliseum render and the other was a weird jungle with two large ramps and platforms.

You could dance around and had a DJ-esque mixer that let you play EDM songs out loud

But I remember one of the most defining features was how you were given a car that was like an older model Shelby Cobra

Somewhat similar to this, you could change the color to whatever with a color wheel.

https://files.libertycity.net/download/gtasaphone_ford/thumbs/2021-02/shelby-cobra_1659470700_10006.jpg