Phoenix AZ here also, ~4$ per gallon for 91 Octane (would love to have access to 93 octane or better)
Vette fillups run tween 50-60$ ..usually at the 1/4 mark because I hate runnin outta gas.
I fill it up about once a month - month and and a half.
She gets about 24mpg around town, just over 30mpg on the freeway at ~70mph.
Stock LS-1 with a decent exhaust .. ~300+hp at the rear wheels.
Being 'retired' I do not drive it every day
.. about twice a week average, with a monthly Club cruise now and then.
April 17th is Cruise Central Avenue night ..oohh yaa .. gotta do *that* ..burnouts an all
Skuzzy, sounds like yer gettin a very nice toy shop setup
Would be fun to play there for a fact
-Frank aka GE