> Even if you could not lock the rear wheels on a regular manual car with the handbrake
Mind you, you don't need to lock the rear wheels to induce oversteer (rear sliding out).
All you need to do is to make the rear wheel braking force be higher than the front wheel braking force while turning. Which in this case, since there is zero braking force on the front wheels, doesn't take much at all. A very quick pull on the handbrake will do it.
If you ever drive a race car with an adjustable brake bias control (changes percentage of braking force front/rear) it's easy to experience it doesn't take much rear bias to induce a spin if braking in a turn, even though none of the wheels ever lock.
So every time I drove off with the engaged parking brake I had my car sliding in the turns? Great news: I appear to have so much muscle memory that I was able to drive without even noticing that.
Mind you, you don't need to lock the rear wheels to induce oversteer (rear sliding out).
All you need to do is to make the rear wheel braking force be higher than the front wheel braking force while turning. Which in this case, since there is zero braking force on the front wheels, doesn't take much at all. A very quick pull on the handbrake will do it.
If you ever drive a race car with an adjustable brake bias control (changes percentage of braking force front/rear) it's easy to experience it doesn't take much rear bias to induce a spin if braking in a turn, even though none of the wheels ever lock.