Whether you love it or loathe it, Chrysler’s PT Cruiser was a running success for the Detroit automaker and over its ten-year lifespan, we saw countless projects cars and tunes based on the retro-styled compact model. However, ask any true Mopar fan what the ultimate modification is for any Chrysler Group model, and you’ll most likely get the answer an engine swap with the Dodge Viper’s ferocious V10 powerplant.

Here at Coolpictures, we’ve shown you plenty of Viper-powered cars ranging from a Chrysler 300 and a Dodge Challenger to a Saab 9-3 and a Jeep Wrangler. Now it’s time to add the Chrysler PT Cruiser to our list of venomous engine swaps with this eBay find.

The PT/10 Cruiser Pickup Truck is said to have been built in 2000. It is based on a custom chassis with power coming from the Viper’s V10 engine churning out 500 ponies. Other goods sourced from the Dodge sports car include the 6-speed transmission, rear suspension, steering rack and seats.

The seller claims that only two examples were built and that this one “has never been driven on the street and has only been used as a show car, there are some minor things that need completing like putting in a set of analog gauges, and some minor wiring tweaks”, adding that “it does start and run great”.

However, if you’re interested, we’d advise you to go check the car in the flesh for yourself before you make any move as a quick search on the internet revealed that some of the photos shown on the eBay page are quite old dating back to January 2006 (see the flickr page here).

Link: ebay

The Davis Mark II limited edition tribute is the latest addition to Project Kahn’s long line of tuned Range Rovers. We are not sure who the vehicle is named after, but for educational purposes [sic…] we found several people with the name Mark Davis on Wikipedia ranging from a British adult film actor to a cricketer, so feel free to take your pick. Back to the tune, Project Kahn’s newest creation is based on the 2011 Range Rover Sport powered by a 3.0-liter V6 turbo diesel and comes with both styling and performance modifications.

On the outside, the luxury SUV is painted in a white color and features a new aero package, the lower parts of which are finished in grey. The side step and air vent trims along with the brake callipers are painted in red or blue. The matte grey door handles and matching color 22-inch-alloy wheels round off the exterior upgrades.

Inside, Project Kahn offers customers numerous options such as a bespoke interior with quilted RS Cosworth leather trim in black with a red or blue stripe, and an infotainment system.

Under the hood, an available £3,995 plus VAT Cosworth upgrade gives the 3.0-liter V6 turbo diesel a 55HP boost lifting output to 300-horses.

According to Project Kahn, the conversion is priced at approximately £25,000 (~US$40,800) and the base vehicle lists at around £50,000 (~US$81,600).

Yesterday, we brought you the first images of Volkswagen’s Golf GTI Cabriolet study but today we have live photos from the car’s world premiere at the Wörthersee meeting in Austria along with official information on the concept.

The hotted-up convertible is based on the standard Golf GTI with power coming from the same 2.0-liter turbocharged four-cylinder engine delivering 210-horsepower and 280 Nm (207-lbs/ft) of peak torque at 1.800 rpm.

Volkswagen says the open-air model’s performance matches that of the closed-top GTI with a 0-100km/h (62mph) sprint time of 7 seconds and a top speed of around 240km/h (149 mph).

Finished in a fire red “Firespark Metallic” color, the Golf GTI Cabriolet rides on a lowered suspension and black-silver 19-inch “Glendale” alloy wheels with 235 tires. The car’s appearance is more aggressive than the GTI hatchback thanks to the add-on aero parts designed in shiny black piano paint.

Volkswagen’s designers also made changes to the front bumper as the fog lights of the GTI gave way to air guides for ventilating the upgraded high-performance brake system that includes brake callipers painted in “Tornado Red” with black GTI logos. At the rear end, there’s a new diffuser with a honeycomb grille separating the redesign exhaust tail pipes.

The concept model’s interior features “Black Stripe” pattern accents and Nappa leather seats with red GTI logos in the head restraints, along with two-tone door inserts and aluminum sill plates. The red decorative seams on the leather-trimmed steering wheel and the trim of the gearshift and parking brake levers as well as on the seat belts complete the upgrades.

Even though VW says the Golf GTI Cabriolet is a pure concept for the time being, we see no reason why the company wouldn’t go ahead and build a production model in the very near future.

For those Maserati Quattroporte owners seeking a bit more flair from the Italian sports sedan, German tuning house MR Car Design has prepared a mild performance package. Starting with a pre-facelift model, MR Car Design’s engineers tweak the 4.2-litre V8 engine’s software and add a custom exhaust system lifting output by 30HP and 29Nm for a total of 430-horses and 480Nm (352 lb-ft) of peak torque.

Luckily, MR Car Design didn't mess around too much with the Quattroporte’s looks as the only cosmetic changes concern the new 22-inch Vossen alloy wheels shod in high-performance tires size 245/30 R22 at the front and 295/25 R22 with 15mm spacers at the back, the tinted windows and the new tail pipe designs.

A set of adjustable sport springs from H&R that lower the car’s ride height from 20mm to 30mm complete the updates.

Even if it has been out of production for some years, the Audi A4 Convertible continues to command the attention of the tuning industry. Sport-Wheels, one of the lesser-known tuning companies in Germany, has presented a new take on the soft-top model with a package for the 2.0-liter TFSI version comprising both mechanical and cosmetic updates.

The tune starts from the A4's engine bay with a reprogrammed ECU and a custom sports exhaust system resulting in a 60 horsepower and 92Nm increase over the standard model for a total output of 260HP and 372Nm (274.4 lb-ft) of peak torque. The package also includes sportier suspension bits from KW .

On the outside, Sport-Wheels kept it simple by adding 20-inch Eta Beta Tettsut X-ceramic alloy rims shod in Dunlop Sport Maxx GT tires in the dimension of 245/30-20, and twin tailpipes on both corners of the rear bumper.