Hi, I drove mine back to the South of France after the Billing show. It cruised on the motorway at 70mph nearly all the way which is about a ten hour drive from Calais. Top speed is a little over 80mph. I have never had it flat out. 60mph is more economical. Oh, mine is a 1990, 200tdi 110, ex military.
Mine sits comfortably at that speed, I have some soundproofing over the transmition tunnel. Steering is fine no vibrations or anything like that. Bit on the noisy side, I have to have the radio up full to hear it comfortably but otherwise a pleasant drive listening to the 200tdi rattling along.