Car 1:
2006 mazda speed6, 2.3l d.i. 4cyl. turbo
13K
bone stock
16-17mpg (all city), 25mpg highway @~80mph, 27mpg @~70
93 octane
(self calculated numbers)
Car 2:
2004 mercury monterey mini-van, 4.3L(?) 6cyl
35K
bone stock
12-14mpg (all city), 22-24mpg highway trips
87 octane
(trip computer avg. reset regularly)