Driving to Modena and back via Calais - good road ideas?

[rossyl]

Hi,

I'll be doing the following trip and would be grateful if you could please give me some tips on great driving roads enroute:

Driving Day 1
North London to Calais (via Eurotunnel)
Calais to Reims

Driving Day 2
Reims to Chamonix

Driving Day 3
Chamonix to Modena

Driving Day 4
Modena to Switerland (final destination undecided) doing the St Gotthard Pass and Grimsel Pass.

Driving Day 5
Undecided

Driving Day 6
Arrive at Calais

Really would be grateful for some ideas.

Thanks,
R