On splash-and-dash Top Gear, we had another one of our epic races. This time it was the Mercedes versus a big boat. We also invited David Dimbleby to drive full tilt around our track, and were slightly aroused by an Alfa Romeo. The race was on - 1,300 miles to cover. Jeremy was in a Mercedes McLaren SLR with only a CD of Margaret Thatcher's greatest speeches to keep him company, while James and Richard took a low-rent North Sea ferry. Destination? Oslo, Norway. The SLR was the only car Jeremy could think of that could drive through eight countries in a single day. It's got 626bhp, but the boat had a staggering 25,000 horses knocking about under its hood. But would power make the difference, or would it be tactics? Jeremy struggled a bit. He had to drive 1,300 miles in about 24 hours. He grabbed a couple of hours sleep at a service station, but then had to power on. James and Richard were all the while living in relative luxury. The duo’s problems only began when they boarded a speed boat. Richard needed to be sick over the side a few times. Then their speed boat broke and they had to be rescued in a support vessel, which then started to sink. Jeremy beat them by a wide margin, which proves one thing: the SLR really is one heck of a car. David Dimbleby, presenter of Question Time and A Picture of Britain, starred in a reasonably priced car. Despite being jolly sensible on television, he managed a very respectable lap time.