Yep the strut tops where changed from 'two bolt' type to the single bolt sierra type strut top, also the early ones had a 40 litre petrol tank with the fuel pump between the rear trailing arms, the later ones had a 48 litre petrol tank and the fuel pump was located under the boot floor.
Apart from a change of gearknob the interior stayed the same throughout as far as i know mate
CheeRS
Gray