Audi vs. BMW - Must see! [HD]
Audi vs. BMW - RS4, RS5, RS6, S8, R8, AS5, AS4, Novulari, MTM, ABT vs. 335i, M3, M5, M6, CS Concept, M-Sport, Hamann
VIDEO | Audi A7 Sportback
Great impressions (concept and outdoor) of the new Audi A7 Sportback - brought to you by Martin Schilder Automobielbedrijven
MTM Supercharged B7 Audi RS4 Clubsport! Launch, 8250 RPM, Crazy Insane sound!
Test drive of MTM's Amazing Supercharged B7 Audi RS4 Clubsport!
The MTM RS4 Clubsport. What praise can we possibly give to the regular RS4 that hasn't already been said? It's simply a phenomenal and highly-capable 4-door unlike anything else available. In stock form it's good enough to lap the Nürburgring Nordschleife quicker than any other 4-door sports sedan on the market. It's exceptionally luxurious and well equipped. It also comes with the tried and proven all weather conquering quattro driveline now with a rearward torque bias. It's not perfect to all people though. And so where there's room for improvement MTM steps to the proverbial plate.
The centerpiece of the MTM RS4 Clubsport package is the liquid-to-air intercooled, Lysolm-type, belt driven Supercharger that resides directly underneath the carbon fiber bulge on the hood and feeds the car with 0.45 bar (6.5 psi) of fresh air. This cleverly designed package sits smack dab between the cylinder heads within the "V" of Audi's 4.2 liter V8 and Boosts power levels to a very impressive 535 horsepower and 428 ft-lbs of torque. The engine internals and compression ratio remains 100% stock. A special carbon fiber vent on the hood gives extra clearance to the Supercharger and helps keep underhood temperatures checked. The blower assembly completely replaces the stock variable length intake manifold.
It's important to note that the RS4 Clubsport is still a prototype, meaning it is quite clearly a work in progress. The final version will certainly be finely finished and up to OEM standards and aesthetics, as with all MTM vehicles. The particular Supercharger on this press car has actually been adapted from a standard S4 application, which is evident by the holes in the intake runner where an IDI fuel injector would normally reside. This same system is available on the normal S4 and can produce up to 503 horsepower.
Roland has set the development durability goal of 50,000 km for this Clubsport RS4. This means he is not going to release the kit into production until the test car reaches 50,000 trouble free kilometers on the stock engine internals. Currently, the press car has seen roughly 15,000 km, so there is a ways to go. However, press cars tend to see slightly more, ummm, "wear and tear" than the average car so one can rest assured that it has been thoroughly tested and developed under all conditions. We drove this car hard, and it ran well without a hiccup.
Development of MTM's Supercharger system was far from easy. Three important factors contributed to the overall difficulty of the project; size (component packaging), heat, and ease of installation.
Audi has already used up nearly all available space by just fitting a V8 into the A4 chassis. They've shortened the engine length as much as possible by using smaller than usual bore-to-bore spacing and fitting the accessory/cam drive to the back of the engine. This didn't leave Roland much real estate to work with on the front side.
A Supercharger setup works by turning an air compressor (blower) mechanically with a belt and pulley system. The extreme revving capability of the RS4 engine means the entire belt drive system must be able to withstand high speed and high torque operation. At full Boost, the Supercharger can require 50 or more horsepower from the engine to spin itself, which must be transmitted through this belt. Considerable effort went into designing the belt/drive assembly to fit into the small space and function without slippage under all conditions.
The additional heat generated by this setup necessitated the carbon fiber scoop which peeks menacingly from the hood area. MTM also concluded intercooling was vital for safe and consistent power delivery. Trials without intercooling showed that intake air temperatures would climb too high, which in turn would decrease power output as the ECU pulls back ignition timing to compensate. Higher temperatures also increase the likelihood of engine knock, not something welcome to an owner when a $30,000 RS4 engine is in stake. The water-to-air intercooling system taps cleanly into the factory cooling system adding an additional heat exchanger before passing through the Supercharger.
"Power is nothing without control". This cliché statement holds especially true with MTM's RS4. Simply adding more power to a stock RS4 would result in a less rounded vehicle, perhaps not as effective overall as what originally rolled off the line at quattro GmbH. The remainder of the modifications were therefore designed to make maximum use of the additional power produced by the Supercharger. Weight saving measures bring the curb weight of the Clubsport down to a claimed 1660 kg (3650 lbs). This is about 350 lbs less than a US-spec RS4 even while counting larger brakes and additional safety features.
Crash Test 2005 - 2011 Audi A6 (Frontal Impact) IIHS
2008 Top Safety Pick 2008 Audi A6: good performance in front, side, and rear tests and standard electronic stability control
FRONTAL OFFSET TEST
OVERALL EVALUATION: Good
Structure/safety cage Injury measures Restraints/dummy kinematics
Head/neck Chest Leg/foot, left Leg/foot, right
Good Good Good Acceptable Good Good
Important: Frontal crash test ratings can be compared only among vehicles of similar weight.
The Audi A6 was redesigned for the 2005 model year.
The frontal offset crash test ratings also apply to the station wagon version of the A6, known as the A6 Avant, beginning with 2006 models.
Restraints/dummy kinematics — Dummy movement was well controlled. During rebound, the dummy's head hit the roof rail and grab handle.
Injury measures — Injury measures taken from the head, neck, and chest indicate low risk of injuries to these body regions in a crash of this severity. Forces on the left femur indicate that upper leg injuries would be possible. Head acceleration from the roof rail/grab handle hit was low.
2011 Audi A7 Sportback
Emotion-packed design, sporty character and innovative technology: Audi is targeting a new market segment with the A7 Sportback. The large five-door model with the dynamically accentuated rear end brings together the best of three worlds: the sporty elegance of a coupe, the comfort of a sedan and the practicality of a station wagon.
The A7 Sportback is pure high-tech. Its body is very lightweight thanks to numerous aluminum components. The elegant interior shows a craftsman's level of workmanship. The four V6 engines combine refined power with groundbreaking efficiency. The 3.0 TDI with 150 kW (204 hp) and multitronic has CO2 emissions of just 139 grams per kilometer (223.70 g/mile). The sporty chassis comes with new solutions, such as electromechanical power steering. When it comes to assistance and infotainment systems, the luxury-class coupe exhibits all of the innovative power expected of Audi.
The five-door coupe from Audi combines supreme, long-distance comfort with a sporty character. The interior noise level is very low even at fast highway speeds, with the V6 engines providing refined acoustic feedback as their power unfolds.
2012 Audi A7 Test Drive & Review
The brand new 2012 Audi A7 is in! We take a look at the beautiful new 4-door hatchback from Audi to see how it feels in person.
Audi A7 Sportback Design
The new Audi A7 Sportback very coool car
plz rate and comment! enjoy
some pictures are from edmunds tv thanks