In fh5 on keyboard when holding the break and the gas at the same time its killing all power to the engine. We cant do standing burnouts, we cant chase in tandems as well because the second the brake is applied all power to the engine is lost. In fh4 you could apply the brakes without revs dropping or any power loss. your tires wouldn’t instantly lock up as they do now. I hope this is a bug and not an intended feature.
Are you using the clutch?