I started ownership with my GTC with a 5,000 km trip across the US. It was fine until I hit the Rocky Mountains and had numerous vapor locks. I ended up having to drive from midnight to 8AM only. Recently I was told about a "great" temporary solution. - Good old American style white bread. Wrap it around the fuel line. Later we found the mechanism that works the mechanical pump was badly worn, and even a higher capacity electric pump couldn't do the job. A fun car.