It's a good reference point for cornering.... for example is gear 3 or 4 faster through turn one at Albert Park? I find they are about the same speed.... 160km/h.... strange that.Why do you need to know your speed? Just get to the front and win.
I'm pretty sure that the number on the left indicates the engine temperature. The numbers on the right indicate the tyre temps (front and rear)The counter on the left indicates fuel usage. When you set fuel to rich it gets to 100 and over, when you set fuel to lean it drops to about 30. The counters on the right are tire temp front and rear.