If you want to take it endurance racing, here's our record:
Race 1: gas, oil, brake pads after 24 hrs.
Race 2: replace 1.6 open diff. new brake rotors after 8hrs (who knows how old the originals were)
Race 3: replace engine (since nobody thought to replace the water pump belt, lost it, and overheated the engine)
race 4: replace 1.6 open diff, replace clutch, rebuild tranny.
Race 5: replace engine installed during race #3. finally get the rest of the team to consider a maintenance plan more stringent than "pull car from barn, change oil, race".