Ideas for Roadtrip Challenges?

[Feathers]

As the title suggests, I'm looking for ideas.
First here's the background to my question...

I will head overseas in June to join some friends from another forum on a roadtrip from Helsinki, Finland to Oslo, Norway, via Nordkapp - the northernmost point of the European continent to which one can drive a car.
It is a trip of nearly 5000km.
We're planning on taking 2 weeks, and then jumping on a ferry from Olso to Kiel in Germany, before heading to a campsite near the Nurburgring for our annual forum trackmeet weekend.

There will be another group who can't do the main roadtrip, but who will be taking 3-5 days to drive around central Europe, before coming to the meet as well.

As the entire concept (and actually the forum itself), started in honour of Top Gear, and inspired by their epic roadtrips, I've decided we need some challenges to complete.
*Apart from all the cars actually making it in one piece, which never happens anyway (almost like it's scripted)*


~They have to be objectives both groups can complete, regardless of the fact we will be in different countries.

~Obviously anything obtained, or done, as part of the challenge has to be legal.

~The challenge will start when the second group depart their meeting point, so both teams have equal time to complete the tasks.

~If items are to be collected, then they should be relatively small, as we're looking at having a 10-12 people in 4-5 cars on both trips, and that's a lot of luggage, tents, spare parts, etc.

~Objectives will be given a points value, with some more difficult than others. However there will be room for discretionary points added during judging, for creativity/comedy value in completing the task.

The winners of the challenge will be decided by the remainder of the trackmeet attendees who do not participate in the roadtrips, so we will need to be able to provide evidence that the objectives have been met, eg. photos, video, collected items.

I think I've covered almost everything...now I just need ideas...so if you can think of anything, please post it up!