Extenuating circumstances.....

 Evoque HSE Dynamic
5.0 Charger MY12

That's a good effort!

In the week or so I've had the SVR I'm pleasantly surprised at the economy when being sensible. Commute to work, which is a 15 mile each way mix of busy NSL then stop start city I'm seeing 21mpg.

Of course, once you put your foot down and have some fun in dynamic mode it's much lower, but even then its not ridiculous - about 13-15mpg.

My actual average over 38,000 miles (really) is 22.3, and I live in central London. Much better than anticipated, or the previous model.

19.9 on a run from Cornwall to Lancashire at a tad over 70mphwith some bad traffic jams. 13.0 from Notts to Devon at 60mph towing a caravan with light traffic. I am happy with this given the pleasure of also getting into sport mode, driving like I was in my TVR, well as near as I can, listening to that glorious engine and ignoring the mpg. past personal chariots
TVR S1, TVR Chimaera, Mercedes 500SL, all sadly missed but age demanded easier access.

Must try harder,

Click image to enlarge

you guys in your SC's! Jeesh!! That's impressive!! You must be able to watch the fuel level indicator tank down as you drive!  2015 RRS AB SDV6, Fuji White, Ivory
2012 RRS HSE SDV6, Sumatra Black and Ivory
Audi A5, 3.0 TDI, Gone
Audi TT, 3.2 V6, Gone
BMW 5 series tourer, Gone

Math's.....thats around 80 miles to a tank at 4.9mpg.....shiiiitttt!

Lotta fun tho!  2015 RRS AB SDV6, Fuji White, Ivory
2012 RRS HSE SDV6, Sumatra Black and Ivory
Audi A5, 3.0 TDI, Gone
Audi TT, 3.2 V6, Gone
BMW 5 series tourer, Gone

This is after a 180-mile motorway trip @85 mph cruise control, very unspirited, extremely boring. Works out to 16 mpg.

Click image to enlarge

22mpg average from my 64 plate supercharged. We drove to Scotland at Christmas and on a clear motorway we got 33mpg for about 300 miles. It is currently achieving better than my M3 and only 7mpg less than our disco used to do.

I'm getting between 11-16mpg in my 4.2. All depends on the type of driving and more importantly who's driving it. The wife uses it in the week for school run / kids stuff and shopping trips and to be honest thats when it gets it's best mpg. Something to do with her light feet I reckon.

I can easily bring it under 10 when I'm the main driver at weekends

I've got a little Mini Cooper S auto that I use as my 'to and from the station car' and that is only getting 16 at best. I fill each one every 2 to 3 weeks as we both only do 50 miles a week tops in each.