I just ordered the G-Tech Pro RR Meter yesterday, total price delivered was $255. And just my luck I was looking at a place that I had priced them yesterday and they put them on sale today for $169.95 delivered. I had done some research on these units yesterday and from what I had read they are very accurate, but you need to know your car's exact weight. Lucky for me I live in farm land USA so I had a choice of four different places to stop and weigh my car yesterday on my way home from work. The car's weight without me in it was 3,070 pounds, has anybody else weighed their car if so what did it weigh?