Mate the Sprint 2 is a far better car to drift with...

I have an E10 on order (Which has been on order for nearly 2 months)

The E10 has the Upper edge for car park drifting being a shaft drive but it wont be as adjustable as the Sprint 2 is..
The E10 is going to be HPI's New Entry level chassis aimed at trying to steal the thunder from the classic TT-01..

But since no one has driven an E10 and a TT-01 and done a comparo against it, it is hard to say what the E10 will be like..

The Sprint 2 How ever I can assure you is a Great chassis to drift.
There is no need to lock Diffs or anything, just add some Polypipe tyres and a Non AI ESC and it is good to go..