It’s plenty of fun even with just 100-hp, but Mazda isn’t called the Zoom Zoom brand for nothing. Revealed today at the 2011 SEMA Show is a tuner car concept dubbed the Mazda2 Turbo. Rather than some bolt-on turbocharger this sub-compact gets a complete swap from its big-brother, the Mazdaspeed3.

Borrowing that 2.3-liter direct-injection 4-cylinder, power more than doubles to 263-hp with almost triple the amount of torque at 280 lb-ft.

Other upgrades include a custom aero kit, 17-inch OZ racing wheels and a Brembo big brake upgrade.

GALLERY: Mazda2 Turbo

See AutoGuide’s complete 2011 SEMA Show coverage here

Now here’s something you don’t see every day. And be thankful you don’t.

One of Vivid Racing’s customers, Shawn, out in Singapore, sent them over these shots of his Mazda RX-8 sporting a custom widebody conversion and a lot of design cues taken from Lamborghini. In particular there’s a lot of Reventon in the kit, not to mention a front end that resembles the Estoque sedan concept.

Modifications aren’t limited to the body either, with a nice set of Prodrive forged wheels and some AP Racing brakes.

GALLERY: Lamborghini-Styled Mazda RX-8

[Source: Vivid Racing Blog]

Mazda doesn’t officially have a presence at the 2009 SEMA Show, but the Japanese automaker did decide to bring two custom cars to Las Vegas. Using in-house parts (many from the Mazda RX-8) and calling upon the automaker’s World Challenge motorsports partner, Tri-Point, Mazda has come up with two fresh and clean examples of the popular Mazda3 and its high-performance MazdaSpeed sibling.

Both cars get a Crystal White Pearl paint job with some faded gray graphics, reminiscent of the style first shown on the Mazda 787B that won Le Mans in 1991. Many of the remaining exterior details get black paint, including the grille inserts, side mirrors, fog lamp bezels and the roof. The front headlamps also get a black treatment. Then both cars have been outfitted with a set of 19×8-inch forged aluminum wheels straight off the RX-8 with a set of 225/40/19 Bridgestone Potenza RE050A tires.

The Mazda3s with the 2.5-liter 4-cylinder was then shipped over to Tri-Point, which installed the company’s turbo kit to boost power to 250-hp thanks to a Garrett GT2871R turbo.

The front brakes have been upgraded to those of the MazdaSpeed3, with rear brakes coming from the Mazda5. Suspension duties were outsourced to KW, with a Tri-Point rear stabilizer bar.

With the MazdaSpeed3 already finely tuned from the factory, only an AEM air intake was added for a gain of 20-hp. Along with the same exterior changes and wheels, a KW suspension was also added but with new suspension mounts for camber adjustability. The brakes were also upgraded to Stoptech units – the same used on the World Challenge cars.

GALLERY: Tuned MazdaSpeed3 and Turbocharged Mazda3s