1997 Mazda Mpv on 2040-cars

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Modded budget Mazda Miata takes on new Porsche Boxster in more challenges

Earlier this month, our friends across the pond at Auto Express released the first in a two-video series that would see them try and build up a second-generation Mazda MX-5 Miata that could best a standard Porsche Boxster around the track. While that first video detailed the mods to the MX-5 - a supercharger, some suspension upgrades and a new set of super-sticky rubber being chief among them - and set baseline lap times for the stock car, today, we have the results of the 5,000-pound ($8,200) upgrade job.
Of course, we aren't going to spoil those for you. You'll need to watch the full video, which recaps the upgrades before digging into a comparison of both straight-line-speed differences between the 2.7-liter Porsche Boxster and blown Miata, as well as their behavior and lap times on the track.
Take a look and let us know what you think in Comments.

Junkyard Gem: 1991 Mercury Capri XR2

Just a year after the Mazda MX-5 Miata first went on sale in the United States, Ford's Mercury Division began selling a similarly-priced two-seat convertible here. This was the 1991-1994 Mercury Capri, and I've found an example of the hot-rod turbocharged version in a northeastern Colorado car graveyard. The Capri name has an illustrious history within the Ford Empire. First used on a Lincoln in 1952, it went on to serve as the name for a hardtop version of the early-1960s Ford Consul in the UK, then as the designation for a low-end trim level on the 1966-1967 Mercury Comet. Starting in the 1969 model year in Europe (1970 in North America), Ford began selling the best-known Capri of all: a sporty coupe based on the Cortina, sold through Mercury dealers in the United States but never badged as a Mercury here. Sales of that Capri halted here after 1978 (they continued through 1986 in Europe), but the Mercury Division then moved the name over to its version of the 1979-1986 Ford Mustang. After that, Ford Australia took the Capri name for a new Mazda 323-based sports car beginning in 1989. Then Dearborn decided that an Americanized version of the Australian Capri would be a success on this side of the Pacific, and left-hand-drive Capris began showing up in American Mercury showrooms in late 1990. Today's Junkyard Gem is one of those first-model-year cars, and it's the very rare turbocharged XR2 version. While this car was intended to be a competitor for the Miata, it's really that car's Mazda cousin. Both cars got their power from 1.6-liter versions of Mazda's versatile B engine, though the Capri had the same front-wheel-drive setup as its 323/Protege (and Escort/Tracer) platform siblings. At the same time, Ford was selling Kia-built Mazdas with Festiva (and, a bit later, Aspire) badging, alongside Mazda MX-6s with Probe badges. Just to make things interesting, American Mazda dealers were selling Ford Explorers as Mazda Navajos, while Rangers with Mazda badges followed starting in 1994. The 1990s were Mazda-riffic times at Ford! This car wasn't the first Australian-designed, Mazda-based Ford product sold in the United States. That honor belongs to the 1988-1989 Mercury Tracer, which was based on the same Mazda 323 platform as the Capri and built in Mexico. Later on, the Tracer remained a member of the 323 chassis family but was a nearly identical twin to its Ford Escort sibling.

Mazda Skyactiv-X Review | The revolution begins with a squeeze-bang

The matte black Skyactiv-X prototype looks like a rough Mazda3, perhaps reconstructed after a bad wreck by an over-enthusiastic owner of a spot welder and lots of gaffers' tape. Ribbed ducts poke out of the dash sending two breaths of conditioned air to no one in particular. Even its revolutionary engine, the thing we're here to experience, is entombed in a massive, nondescript cover to mask its unseemly noises. It's a wild, strange way to meet a very unconventional vehicle that promises diesel-like fuel economy, a wide torque band, and an exotic method for burning less gas than ever before. It takes a few hours for Mazda's engineers to explain the fundamental principles of operation. For more detail, read our Skyactiv-X Spark Controlled Compression Ignition explainer, but here's a very brief overview. Skyactiv-X marries some traditional gasoline engine characteristics with a novel form of compression ignition called SPCCI. The key for Skyactiv-X is to use very high compression in the cylinder and an extremely lean fuel-air mixture. Squeezed right to the cusp of getting hot enough to blow up all on its own (which is very hard to predict), a squirt of extra gas and a spark interject to cross that compression-ignition threshold in a controlled and predictable manner. See the animation below: That takes a few essential components to get just right. One is a massive amount of computer processing power and some pressure sensors in the individual cylinders, because the ambient conditions change how and when these things happen. Skyactiv-X uses a clutched supercharger to pump in additional air when needed to nail the mixture precisely, and high-pressure injectors to get the low ratios of fuel to disperse properly in the chamber. And since it operates like a conventional gasoline engine sometimes, it uses valve timing to lower the very high compression ratio so it doesn't reach combustion ignition in that mode. In practice, the Skyactiv-X runs in compression ignition mode most of the time. In practical terms, that means it drives like a torquey gasoline Skyactiv engine. The torque curve is broad and flat — diesel-like in that respect. That also means it can get away with using a six-speed transmission and a lower final drive for better response. There's enough grunt and economy together that Mazda can let the engine spin faster — at 60 mph, it's running at roughly 1,000 more RPM than a similar gas engine, with greater efficiency.