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See the layout of the yellow racetrack? Nice gismo to keep track on the trackday pressure in tire. So two types of pressure the car Will show and moniter, street pressure and any giver favourite track pressure. I find this gismo Rather usefull, to calibrate my own handheld pressure gadget.
I think I'd probably trust a handheld gadget over an in-car gadget, at least judging based on my previous experiences with TPMS sensors that actually show a numeric pressure. Assuming you have a good handheld gadget, of course. The one on my little 12V air compressor always reads 3-4 PSI higher than my real pressure gauge.
My impression is IT work very Well, a part of that is you instant learn to see real time how much tires rise from cold to medium to track hot. And its nice to have and indpendent watchgard. I used It on the trackday a few days ago and i accually like it. road pressure is set cold tire 20 degrees 2.0 front and 2.3 rear(bar).
Its accually not a comfort car, ok i did know that but this engine is right behind My ears and accually quit disturbing. As Well like all cars on cup tire IT drag up everything in to the wheelwels and there its no plastic protection rear, front some butt not compleat. As Well the solid ballbering of steel do make them self herd. It reminde me of when i drive a real racecar��, sure not at all that extrem but similar in ways��. And thats what i like.