I am not to sure of topspeed of a 90 n/a but i would expect it to be about 65ish. I had a 109 2.25 petrol ex military what could do 60 allday if i wanted too and i have heard people say it is similiar performanc? just better torque on diesel.
I now have a 110 2.5td and a 2.8td rangie.
Oh and...