A recently discovered and more than a little odd glitch in GTA Online has made the racing scene pretty volatile. This is especially unfortunate due to the recent revitalization that particular activity has enjoyed thanks to the Cunning Stunts updates bring Stunt and Premium races into the picture. The worst part? The glitch often results in a disadvantage for the user, but is often used nonetheless.
GTA Online is no stranger to vehicle bugs, however this is to be expected when you have such a massive number of cars in the lineup and a constant influx of DLC muddying the status quo every month or so. Back when Rockstar was still often adding new cars to the lineup of Benny's Original Motorworks, the Banshee 900R was bugged, and the upgraded version was objectively worse than the stock car.
After some time, the glitch was corrected, briefly turning the proper 900R upgrade into the fastest car in the game. Of course, there were many other options to choose from when faced with racing, so the glitch didn't really harm anyone that time around.

This time, however, people with stronger PCs or even newer displays can exploit a new glitch, turning one of the fastest cars in the game into the fastest car in the game. By a lot. Ridiculously. The Annis RE-7B racecar was added to GTA Online with the Cunning Stunts update, and immediately shone as one of the best vehicles for racing events (surprise?).
However, a recently discovered glitch, which could be called an exploit, has sent race balancing to whack. Take an Annis RE-7B, slap a carbon spoiler onto it, lower the suspension to the lowest possible point and keep the stock tires. The result will be a very odd effect boosting the speed of the vehicle up to, and sometimes beyond, 190 mph. For reference, the car should be capped at around 125.