Sierras are shit fro drifting without a lot of steering mods. been there and tried it

you can pick up an old mx5 and have the diff welded for about £500 good out the box beginner drift car!

200sx are good with a welded diff, but cost more buy and insure.

again, bms need a bit of work to get some decent lock.

as if you going to practice properly, then you will crsh, so the cheaper the car the better. imo id be looking at bog std cheap mx5 and have the diff welded.