Rc stadium truck.Advice for a newbie plz

[Geecom]

Hi all.

I'm looking for an off road truck for my son(13)for Christmas.
Spent a few hours searching the net for advice(done a search on here as well)and have come up with what I hope is a good choice,please bear in mind that i'm a total newbie to RC cars.

Just thought i'd ask the experts on here first before I buy as to what your opinions are on this truck

http://www.modelsport.co.uk/hpi-blitz-short-course...

will it be easily upgradeable,(when he gets more use to the power and speed)i.e can you just slap Lipo batteries in or do you have to upgrade other parts first.

Any helpful advice or suggestions much appreciated.