Switzerland Rally around August 25th 2013?

Was in Lucerne going to interlaken, saw lines of ferraris at least 60-100 cars. Weather sucked but just curious as to what was going on?

 

Thanks, figured something of that scale couldn't happen and not be known on here. I rented a 458 spider from elite I was driving around but left it at the hotel in Lucerne that day. Was heading to shilthorn to look that the fog, was curious as to the end destination of the drive.