Ive been on two rallys now and have had a great time on both. The first was the Beach Run a few years ago and the second the rally from Scotland to Marbella.
Both were great in different ways - the beach run was a group of petrol heads driving their many different types of cars from London to Torquay and having a blast along the way. The partys on each stop gave everybody a great chance to get to know each other, and the drives gave us a chance to enjoy our cars.
The Marbella rally was similar to the Beach Run, but cranked up a few hundred percent. The people on this rally were a riot - the cars were awesome and varied - Lamborghinis and Ferarris to Corsas, Audis and BMWs. The drives were brilliant and the partys helped a great group of people in both experiences bond.
Only thing to bear in mind is that it costs more than the entry fee. To fully enjoy the experience, take some pocket money to spend on the run - applies a little more to the Marbella run than the beach run. That being said, there's a good enough mix of people in the groups that you can have a great time whatever your budget.
Had a great time and would go on another one.