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Here is a graph from Eurocharged showing three different dyno runs from a 2005 Mercedes-Benz R230 SL65 AMG. The runs show stock, then flashed with the Eurocharged Stage 1 software, and then flashed with the more aggressive Eurocharged Stage 2 software. The baseline for the SL65 shows 374 wheel horsepower meaning this is a very, very conservative reading Mustang dyno. On a Dynojet the car shows about 520 rear wheel horsepower stock so this is a heartbreaker dyno. Regardless, the Stage I software adds about 100 horsepower at the wheels on this dyno over stock. Torque jumps up 106 lb-ft at the wheels to an eye opening 628 lb-ft. Bringing up the Dynojet again that would be close to 900 lb-ft at the wheels. Yes, an insane amount of torque. The Stage II software is able to further improve on the Stage I with gains of 33 wheel horsepower and 87 lb-ft of torque at the wheels for a total of 715 lb-ft. Yes, the torque falls off hard. This is not a motor that likes to rev or that has a flat curve. It's a stump puller and all about big, big torque down low. Great comparison illustrating just how much power can be pulled out of the SL65 AMG M275 twin turbo V12.

The current Audi Q7 is a solid SUV but also pretty heavy with the diesel and V8 (which has now been replaced with a lighter 3.0 TFSI) versions coming in at about 5500 pounds. Audi has shown a lot of emphasis on as of late on lightweight materials showing they are very aware their vehicles used to be the heaviest in the segment. That is changing and Audi is quite serious about it going so far as to shave 800 pound from the Q7 for the next generation Q7 model. That means a curb weight somewhere around the 4700 pound range. That would undercut the current BMW X5, Mercedes ML, and Porsche Cayenne. It definitely is nice to see Audi put an emphasis on making its models lighter and not just adding power to mask it (like BMW as of late). Expect the new Q7 in 2015. Source