The mk1 has a lever handbrake, double din radio and separate nav in a semi circular dash unit, on the outside it has triangle shaped fog lights, badge on the bonnet and at the rear it has smaller rear lights, a chrome strip above the reg plate. The mk1.5 if you like, from 02 ish, has the sat nav touch screen in the centre, more jag like, electronic hand brake, different clocks. On the outside the badge is in the top of the grille, the bumpers are the same on the front and the rear is still the same. The facelift, from 03 on I think has revised bumpers front and rear, round fog lights and bigger rear lights with a chrome strip extended the width of the boot lid, on the inside, different clocks.