[FDTT]

High power drag cars are harder on everything than high powered drift cars.
In a drag car you are reaching 60 foot times of close to 1 second these days. That 0-60feet in less time than it takes some to blink. That means a 2000lb peice of metal being hurled forward at huge amount of force. I could figure out the exact math but thats annoying :P

With a high powered drift car and a good drive you can generaly faint drift or power over and just break the rear end loos. If the drift is prefromed properly the only noticable stress is on the diff and the tires. This is assuming that the driver is experanced and knows how to properly bring a car to a good angle. Clutch kicks and clutch lock are VERY hard on the drivetrain of the car. But the simple fact that the car is already moving at a good rate of speed takes alot of the stress off the car. And in both cases cars are equiped with roll cages so chassis twist is not usualy to bad.

If its jut average joe driving these cars to a drift event or drag event, then it is very hard to decide as there are ALOT of factors to put in. But traction compound+stockish drivetrain=deal every bushing, shaft, and artnny in the car :P