Hello Howard,
we'll be using my cell-phone's Navigon system. So I guess, I cannot import routes with it, but thanks for offering to work this all out!
The details: We have the factory-tour on June 6th, 10 a.m. and have booked another night in the Malvern area.
On the 7th, we plan to drift south/southeast. That is our touring-day; for on the 8th, at 11:20 a.m. the chunnel-train is leaving Folkstone with us on board.
So our basic plan was to take in some sights on the 7th. Spend a night somewhere on-route so that we reach Folkstone safely on the 8th at around 10:20.
We know, it is only a VERY short trip; but better than not being able to go at all...

Daniel