chiromikey

Since this platform can't compete with tuned RS or M cars, this is all I have left to brag about...

Muxture of city and 80 miles highway with cruise set to 70.

jvakos

cmon we compete damn well man! just dont win with out a bunch of tricks

amazing u got 29mpg!! was AC on as you were in 90 deg temps? i am stock, my mpg never been above 25 in cool temps, AC off and 65 mph driving.

normal stop and go in chicago city conditions is 10-11 mpg.

chiromikey

Mod for mod, we get spanked. It takes us upgraded turbos to come close to a stage 2 tuned competitor.

But, yes ac was on the whole trip and the gf was with me. I'm tuned and downpipes and have never paid much attention to mpgs so I didn't expect this. This is actually the first time I've had the patience to have the cruise control on most of the trip.

Luke-BITURBO

We seem to have less problems in the uk with m cars maybe are tuned are better lol

dav461

Mine st3 consumes less when set to 70 😑

C Smith

My car won't do that. I'm getting about 16 MPG blended.

gaspam

show us a 9 sec M157 in uk... we will wait there are 9 sec M cars and RS cars here

efiftyfizzle

9 second RS cars?

gaspam

yeah and even at 5100 DA lol 9.9/147 ,,,,TT RS though... still RS car .... RS7's are going 10.2-10.3 consistently though

PeterUbers

I can do 29 mpg downhill

Savage212

Thats awesome.... but......... Comparing a 3300# shop mule to a 4700# Luxo barge on canned tune ? Not really apples to apples. Not trying to say the E63 is out there breaking all the barriers, thats just not even close to a reasonable example.

gaspam

that wasnt the main example.... the main example was M5s running 9s and RS7's running 10.2s which weight about same as our cars... actually RS7 is heavier

the tt rs was just because someone asked about 9 sec RS cars

Celicasaur

For my reference....is this because of the MCT transmission and that annoying delay before the car moves forward when you come off the brakes? Or is it just that it doesn't make enough peak power up top to compete?

PeterUbers

summary of why e63 sucks:

1. Throttle tip in delay
2. Torque limits in Lower gears (not related with #1)
3. Awd parasitic losses on highway runs

otakki

You're not cruising down the mountain in neutral, are you?! LOL. That's 5.5TT, right?

ajs76

That mpg is amazing. I feel like I could hypermile downhill and the best I'd get would be 21mpg

chiromikey

Not at all. I typically do a 65/35 mix of highway to city driving but I'm always in the throttle. 70mph is a crawl to me and I average just under 18mpg. So when I got off the freeway after having it on cruise control for over an hour I was curious...then I was shocked. And yes, it's a 5.5TT with EC tune and downpipes.

otakki

Check out mine. Similar number with the left pic at 29 mpg...but keep in mind it's from a stock M156. Yup, naturally aspirated 6.2L!

Celicasaur

Wow that's amazing ^

it's quite funny...of all my cars...E39 M5, W124 E320 cabrio, 2.0l stroker Celica, E63 6.2l.....the 6.2l V8 is the most economical

otakki

Sorry, folks! I've cheated! The pic on the left was from coming down the mountain and the car was mostly in neutral. That was how the thought came to mind when I saw the post.

However, the pic on the right was legit. It was pretty much all highway miles and showed remarkable feats that modern engines are capable of. Of course, we all know elevation and wind direction should all be taken into consideration. The ideal place would be a salt flat on a windless day.

The OP's numbers are really impressive and show what forced induction can do. Unfortunately, I just can't bring myself to let go of large displacement, naturally aspirated engines.

pghc63

14.9 mpg mostly highway driving

PeterUbers

I never reset my computer for 17,000 miles ... getting average of 18.1mpg with mixed 50:50 highway:city

efiftyfizzle

All I got from this thread is that there are a bunch of forum members who paid a whole lot of extra money for an AMG model that they are not driving properly.

chiromikey

What you should have gotten is that even when we drive it properly, we still get spanked by Audis and BMWs...

mj_39