Mine are Imperial Gallons not US, but they are close.
Best 31.5 on a 400 mile trip
Worst 9.1 on a track event
$3.50 a gallon, I wish. Its 1.05 GBP for a litre of Shell Vmax (99 RON), 4.54 L to a UK Gallon equals 4.55 GBP per gallon which at exchange rate of 2.05 is 9.77US per gallon. The kicker is that most of this is tax.
I am going to do a Thelma and Louise now