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Jay Leno brings a rotary-powered VW Beetle to the garage

It takes something really unique or inventive to pique Jay Leno's interest. His show, Jay Leno's Garage, has featured everything from concours-worthy classics to completely custom, home-built machinery. How do you get Leno to feature one of more than 20 million Beetles on his program? Stick a turbocharged rotary engine under the hood. The Beetle's owner, Mario Markakis, swapped the car's stock flat four-cylinder for the Wankel engine from a 1990 Mazda RX-7 Series 5 Turbo. The engine's 250 horsepower are fed through a reinforced version of the Beetle's stock four-speed transmission. That's about five times the original engine's output. It works well, with the car putting down some impressive times at the drag strip. Markakis did most of the work to the Beetle in his garage. In addition to the engine swap, he's modified the car's brakes, suspension, and interior. Check out the video to hear all the details of this custom Wankel-powered Volkswagen. Related Video: Celebrities TV/Movies Mazda Volkswagen Classics Videos Jay Lenos Garage rotary mazda rx-7

2018 Mazda CX-5 Buying Guide | Specs, safety, expert reviews, and more

Crossovers are all the rage these days, and spunky Mazda devotes half of its six-vehicle portfolio to the segment. The compact CX-5 slots right in the middle of its crossover lineup, size-wise, and outsells all other Mazda vehicles by a country mile, with sales continuing to climb so far in 2018. The CX-5 was the first car to feature Mazda's KODO design language, which has given its vehicles a more premium appearance and made the CX-5 longer-looking and more taut. Now in its second generation, Mazda offers the CX-5 in Sport, Touring and Grand Touring trims, with the option of front- or all-wheel drive configurations. This Autoblog buyer's guide is aimed at helping you to make an educated decision about whether to buy the 2018 Mazda CX-5. We'll summarize safety and reliability ratings, engine specs and horsepower, fuel economy ratings and pricing. We'll also touch on what Autoblog's professional reviewer thinks of the crossover. Is the 2018 Mazda CX-5 safe? Based on its crash tests, the National Highway Traffic Safety Administration gives the 2018 CX-5 a four-star overall rating. It awards five stars for frontal- and side-crash protection, and four of five stars for rollover crashes. The Insurance Institute for Highway Safety further vouches for the 2018 Mazda CX-5, giving the crossover its coveted Top Safety Pick + award — at the time of this writing, the only compact crossover to get this rating, thanks to available adaptive headlights. It also has good ratings for all of its crash-test metrics and headlights, a superior rating for front-crash avoidance, with optional equipment, and an acceptable rating for the ease of use of the child-seat LATCH anchors. We encourage you to visit the NHTSA and IIHS websites to review ratings on the specific vehicle you're researching. Is the 2018 Mazda CX-5 reliable? J.D. Power gives the 2018 Mazda CX-5 an overall score of 75 out of 100, considered average. On its 10-point scale, it rates the vehicle an 8 on overall quality, which is in the average range, and 9 — considered among the best — for overall performance. It rates an 8 for overall depreciation. As is customary, we note that Autoblog has raised concerns about the way J.D. Power weights serious and less-serious reliability issues. You can read more about that here. According to NHTSA, there has been one recall involving 682 models of the 2018 CX-5 because the side curtain airbags may not properly deploy following a side-impact or rollover crash.

Mazda's next-gen SkyActiv engines will drop spark plugs in favor of high compression

Homogeneous charge compression ignition, or HCCI, is the black art of internal combustion engines that aims to produce diesel-like fuel efficiency for the cost of gasoline. Although some of its competitors have developed and subsequently given up on the tech, Mazda confirmed that the next-generation of SkyActiv engines will employ HCCI technology, improving fuel economy by 30 percent and at the same time reducing exhaust emissions. According to Nikkei, a new SkyActiv family of engines is set to debut under the hood of the next-gen Mazda3 sometime in 2018 before making its way into other vehicles. In simple terms, an engine that uses HCCI burns the air/fuel mix using pressure instead of with spark plugs, just like a diesel. At 14:1, Mazda's gasoline engines already have some of the highest compression ratios out there, but a move to HCCI means cranking up the compression to 18:1. While the tech sounds relatively straightforward, using HCCI means dealing with a number of side issues. It's one of those "on paper" ideas that compounds problems when put into practice. Heat, revs, and fuel must all be carefully managed as gasoline doesn't burn the same way as diesel. Mazda is mum on details, but the automaker seems confident that the issues have been sorted. If the new engines do indeed make it to market with HCCI, Mazda will have out-engineered GM, Daimler, and Hyundai, all of which have tried and failed to develop HCCI engines in a cost-effective package. With the market moving towards electrification, it's interesting to see Mazda still focusing so heavily on traditional internal combustion gasoline engines. It's an indication of where they see the market heading for the next few years. Although the automaker has been hesitant to move forward with hybrid and electric powertrains, Nikkei also reports that Mazda will begin mass production of EVs in 2019. Related Video: