Sir William Lyons said Jaguar was "Grace with Pace" and having traveled across Europe, Rotterdam to Vienna averaging 100 Mph+ I can testify to that.
Cruising at 100+ in an XJS is eerily quiet, exceedingly comfortable, course the only thing about doing 100+ in an XJS is you can see the petrol gauge dropping, so once you get to half a tank you really need to be looking out for a Service station.
The fastest I ever took my XJS was in Germany, at 148 Mph I chickened out, the XJS had more in her.
This is a XJS 4.3 Sport, with a Straight 6, fitted with twin turbo's, and a 5 speed Getrag automatic gearbox. She'd do o-60 in about 5.5 sec and 30-70 in under 3, the colour was "Cranberry Red" which looks like Fireglo to me which is why I chose it !!