It will probably take you around 16 hours without stopping.
How long does it take to drive from Trier in germany to Calais?
About 4h45
342miles
three month
You can not drive to Valencia because it is across the ocean, so you will have to take a plane, fastest way, or a boat.
19 hours
36 hours
the distance from Calais to Biarritz is 1070 km. This is a driving time of nearly ten hours.
About 3.5 hours
8 hours
3 and a half hours
approximatly 4 hours drive