Overall features of both the vehicles are the same. However the i10 beats the Wagon R engne in power package.

As far as looks are concerned i10 has got more sleek looks and looks trendy in all colours. The design is just perfect & supports stability at higher speeds.

Wagon R wins at the space package. You may go out for a weekend trip along with you bicycle and sufficient lagguage ur Wagon R.

The seat belt positioning of Wagon R irritates. The belt comes just near you neck.

overall i10 is better. Go for it !

However if you are 6 feet above go for Wagon R, it as got ample head room.