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The car makes more horsepower than the dyno can measure.

Official

It's less expensive than that V8 swap you've considered.

Flyin' Miata is the sole US distributor.

Official

Look for new colors and an expansion of Porsche connectivity features.

ETC

Thanks to Bisimoto Engineering, this 911 is getting an engine from Hyundai. And probably a ridiculous amount of power.

ETC

But proposed law doesn't discern between criminals, gearheads or researchers.

Car hackers may not want to mess with vehicles in and around the Motor City. A pair of Michigan lawmakers introduced legislation Thursday that would punish anyone who infiltrates a vehicle's electronic systems with penalties as harsh as life imprisonment.

Official

ABT Sportsline, known as ABT Tuning from its founding in 1967 until 1991, is a German aftermarket parts and tuning company that has focused on enhancing Volkswagens and Audis since the VW GTI bowed in 1978 (in Europe, at least) and races competitively in DTM (Germany's touring car racing series). The company has kept its roots in Europe for all of these years, but will debut the AS6, based on the Audi A6, at the Specialty Equipment Market Association (SEMA) in a couple weeks before opening up sh

Official

You can't even buy the 2014 Mercedes-Benz S-Class yet, but Brabus is ready to help you prepare for it. The German tuning house has engineered a suite of upgrades for the sedan that does just about everything but provide a button for its own aftermarket tune. The heart of any Brabus is the engine, and there are three heart transplants to choose from: there's the B50S for the S550 that adds 65 horsepower, for a total of 520 hp and 604 pound-feet of torque; the B63 takes the S63 AMG up to 650 hp an

Official

With Steve Saleen back at the helm of his namesake automaker, another recognizable name is reappearing in the Saleen sports car lineup. As previewed by the above rendering at the LA Auto Show, the Saleen 351 returns after a 13-year absence with 700 horsepower under the hood – take that Shelby GT500.

SEMA

The twisted minds at Bisimoto Engineering took one look at the 2013 Hyundai Elantra GT and said, "Nice looking car, but , really? Only 148 horses out of 1.8 liters?"

Brabus Tesla Roadster – click above for high-res image gallery

Autotechnik + Tuning Thunderstorm BMW M3 -- Click above for image gallery

E30 M3 V10 vs. V8-powered E92 M3 -- Click above to view the video after the jump

Click above for image gallery and follow the jump for the video

When we find modded cars such as the Smart or the Tesla, we always raise an eyebrow about the impact this might have on fuel economy. However, this is not the case with the Aerocivic or the vehicle you see above: a modded Prius that is supposed to have an even lower aerodynamic drag than the original. According to AutoLabo, the creators said the current build opens the door to more "eco-tuning," leaving aside questions about the look of huge fenders and nearly-impossible additions that cover the

Cobb Tuning has re-engineered its AccessPort control unit for the new R35 Nissan GT-R. For those of you lucky enough to own a GT-R and not content with its performance out of the box, the $995 AccessPort will reflash the ECU to any one of six different tuning levels.

Click above for more high-res pics of the Genesis DUB-ified

Want to go farther on each tank of diesel? Who doesn't, these days? One way to eke out a bit more distance between fill-ups is to driver more economically. Another, according to Paramount Performance of Slough in the UK, is to get "one of the simple 'plug and play' diesel economy units" sold by Paramount. By remapping the engine control unit (or ECU), Paramount claims fuel economy improvements of up to 16 percent. The turbo diesel kits cost between £299 to £350, plus VAT.

With all the news surrounding the Nissan GT-R V-Spec, the progress on the Godzilla tuning front has been largely overlooked. According to a recent article in Japan's BestCar magazine, the Amuse team has broken the 600 hp mark (at the crank) with a combination of a high-flow exhaust and a tweaked ECU. There were no details on how the GT-R's computer was hacked, but Amuse was able to up the boost to 18 psi, resulting in an increase in output to 602.73 hp and 576.95 lb.-ft. of torque.