2010 Volkswagen Passat Komfort Sedan 4-door 2.0l Turbo on 2040-cars

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Volkswagen considering a four-door, four-seat XL1

According to a report in Autocar, Volkswagen might have more in mind for the XL1 than mining it for advances to grace the next-generation Golf. Aiming to fight the Honda FCEV due for public consumption next year, we're told VW executives have put a four-door, four-seater version of the XL1 - it could be called XL2 - on the drawing board. The impetus is said to come from the top, with VW Group chairman Ferdinand Piëch intent on staying in the deep end of "super-efficent vehicles."
Autocar suspects the necessary changes could raise the weight of the car from 1,749 pounds to 2,068 pounds, which would make it four pounds less than the 2,072-pound Up! we drove a few years ago. Crucially, however, the mag thinks the extra capacity wouldn't change the two-seater's 310-mile-per-gallon rating, with tech tweaks and the aerodynamic benefit of a longer car offsetting the weight. Speculation is that the back seats would be staggered like the fronts in order to maintain the XL1's overall profile.
We recently heard about another XL1 variant that's gone off the radar entirely, the Ducati-engined XLR that we thought we'd see at the Geneva Motor Show and that was said to be going into production, so this one could go the same way. The biggest hurdle to making such an idea a reality, though, could be the price: the current XL1 costs 110,000 euros ($146,116). If VW really is going to compete with the Honda FCEV and the Toyota FCV - $70,000 in Japan - that might be where it wants to start.

How VW's hyper-efficient XL1 will influence the next Golf

In 2007, the European Union mandated fleet average CO2 emissions of 158.7 g/km. For 2015, that figure will drop to 130 g/km, and the target for 2020 is an ambitions 95 g/km. Thanks to some German politicking, that target will be phased in from 2020 to 2024, but it will still apply to 80 percent of passenger cars in that first year. In US miles per gallon, that's the equivalent of going from about 35 mpg to 42 mpg to 57 mpg. The current Volkswagen Golf is rated from 85 g/km of CO2 to 190 g/km depending on model - and zero for the e-Golf, so for the next-generation MkVIII hatch due in 2019, to meet the goal, Volkswagen engineers will need to introduce a bunch of new tricks. According to a report in Autocar, VW be mining its hyper-efficient XL1 for some of them.
Predictions for the next Golf include a variable-compression engine, an electric flywheel and an electric turbo, along with taking greater advantage of coasting. Volkswagen could be getting help from Audi with the electric turbo and variable-compression engine and electric turbo, with Audi already having shown off the former and brand technical boss Ulrich Hackenberg confirming the VW Group is working on the latter. It's possible the flywheel system could also have the mark of The Four Rings: Autocar mentions a British system that Volvo is testing, but the R18 e-tron Quattro racer has been using one for years.
The need for such features is because the company won't be able to net enough future gains from just aerodynamic improvements and advanced materials. As price will be a factor (the regulations are expected to "add hundreds of euros to the cost of building a car"), adding much more aluminum or carbon fiber is an unlikely option. We're told the next generation won't be longer or wider than the current car, and being Europe's most popular model, VW doesn't want to make a big bet on futuristic aero, but the report says the MkVIII will "likely" have "the most aerodynamic treatment yet seen on a production vehicle," the area where lessons learned from the XL1 will truly be seen.

Get ready to Camino-ize your fourth-generation VW Jetta with this kit

Inexpensive, small pickup trucks used to be everywhere in the US, whether they were from Japanese brands like Datsun or Toyota, the truly weird Subaru Brat or even from Europe with the Volkswagen Caddy based on the Golf. These days that market has completely disappeared, but if you're willing to pick up some tools to build your own, there's a company out there bringing the Caddy back as a kit for the Jetta.
Mark Smith knows a thing about building a vehicle at home. He has over two decades in the DIY-car business as a co-founder of Local Motors and the company that became Factory Five Racing. His latest venture is Smyth Performance and already offers a mid-engine, VW-based kit called the G3F. His new product, though, started as a fluke. "I just wanted a shop truck," said Smith to Autoblog. He already had a Ford F-450 but found that he was driving around with the bed empty most of the time. The result was a pickup truck based on the fourth-generation Jetta that he dubbed the Ute.
The kit retails for $3,500 and ships in three, big boxes, and it's designed to be built and painted in a weekend. Buyers get fiberglass exterior panels, a fiberglass rear window surround, sliding rear window, an aluminum reinforced bed with a tubular steel subframe, taillights, a fully functional steel tailgate, and other parts. In the end, you get a vehicle with a six-foot bed and a payload of around 700-750 pounds. The Ute maintains all of the factory suspension, fuel tank and emissions equipment and requires just a few cuts in the body to complete. "We did a modern Caddy," admits Smith.