Word of caution for anyone coming down the M1 from oop north...
When I've been going t'other way round the M25 on a Friday (to Taly and Oz) the southbound traffic at the base of the M1 is horrendous - even at 1pm.
Coming back from Preston a few weeks ago, I hit the queues at Luton on the M1 at 2pm and didn't hit the M25 (only 10 miles or so) until 3.30.
Last time I had to come southbound on the M1, I cut across at J15 and joined the M11 to avoid the bottom of the M1/M25 junction. About 30miles longer in total but more likely to be less hassle - though the cut across country goes single lane at times.
M25 will just be heavy and congested like Matt says but will flow or crawl unless there's been a biggie.
Track is definitely worth the wait though. Matt and the EPR boyz have put in a load of work and it looks great - and drives even better. Best have a few spares though
