On Tue, 05 Jan 2010 23:14:05 +0000, Dave wrote:

My route will be Preston M6 to the M42 to the M40 to the A34 to the M3
to the M27 to the M275 and then through Portsmouth main roads to
Southsea.

Thats what TomTom said, personally I'd not use the M6 across the
north of Birmingham. It's better since the toll road but can still be
nose to tail 20mph stuff. I'd drop down the M5 then the M42. TomTom
says 4h14m 265 miles around the SW of B'ham v 4h12m 263 miles over
the north.

If I could I also avoid the M6 south of Manchester but you can't.
B-(

--
Cheers
Dave.