hey guys i was wondering how many RPMs ur cars run at 80 mph on highway with cruise control?

i have an xs.

Pretty high...Mine shows up between 3k-4k at those speeds.

^ about same as mine

I drive a 6MT, so your X will probably differ a little.

2400 rpm = 60 mph
2600 rpm = 65 mph
2800 rpm = 70 mph
3000 rpm = 75 mph
3200 rpm = 80 mph

stock sized tires (for Sport)
in 6th gear,
3.54 rear axle ratio

72 mph is about 3 k for me

stock tires 80mph = 3200 rpms
my other 18s with low profile (real) 80mph = (dash)85mph so like 3500rpms =/