A car around a track, you re aiming to do one thing take corners really well. it s all about timing, braking in the right place and trying to keep the car on the fastest line. to help with this, the catalyst uses a camera fitted to the dashboard, along with gps and accelerometers, to work out where you are on the circuit. after three set up laps, it analyses where it thinks improvements can be made and then coaches you in real time as you continue round the circuit. what did it say there? good job on braking harder. 0k. so that s what it wants me to do? apex later? i like it. it says, nice work, so it s sort of encouraging me a little bit. ....