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Weekly Recap: Geneva's splendor reflects growing demand for ultra-luxury cars

Geneva is one of the most glittering auto shows in the world, but the list of high-powered and bespoke luxury cars was decadent this year even by the rich standards of the Swiss exhibition. It's great for enthusiasts to revel in the flame-throwing Aston Martin Vulcan, the racing-inspired elegance of the Bentley EXP 10 Speed 6 concept and the insane performance of the Lamborghini Aventador LP 750-4 Superveloce, but there's a reason for all of this opulence: the luxury market is big business. And it's growing. IHS Automotive forecasts that so-called ultra-premium sales will nearly triple this decade from 123,000 to 353,000 units around the world. The estimate includes brands like Aston Martin, Bentley, Ferrari and Rolls-Royce, but doesn't count BMW, Mercedes and Audi, which offer less expensive models in addition to their high-end flagships. Though IHS includes Porsche and its relatively large volume in the study, the ultra-premium segment is still set grow at about the same rate, even without the German automaker's figures. So what is propelling all of this growth in the most expensive segment of the auto industry? Put simply, there's more rich people. IHS Automotive principal analyst Tim Urquhart pointed to economic expansion in China, market recovery in the United States and a surge in the lucrative technology sector as contributing factors. This dovetails with a research report by UK-based Oxfam, an international relief organization, which found the world's richest one-percent owned 48 percent of global wealth in 2014, and it's expected to increase to more than 50 percent by 2016. View 17 Photos Carmakers are moving quickly to capitalize with new products, expanding their portfolios with low-volume speedsters like the 800-hp V12 Vulcan at Geneva, and plans to enter new segments, like Rolls-Royce's strategy to make an SUV. "Ultra-premium carmakers are looking to explore ways of growing their product offerings, and thus their bottom lines, in this most potentially profitable of segments," Urquhart wrote in a report on the Geneva show. In a nutshell, there are more choices for people with more money. It's a good time to have expensive taste. Other News & Notes 2016 Mazda MX-5 Miata production launches It won't be long now. The 2016 Mazda MX-5 Miata arrives later this year, and it's officially in production. Mazda announced this week that the roadster began rolling off the assembly line at its Ujina factory in Hiroshima, Japan.

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).

GM follows up Lambda CUV stop-sale with tire recall

In late January, General Motors announced a stop-sale for about 6,281 examples of the 2015 Chevrolet Traverse, GMC Acadia and Buick Enclave because of the possibility for the treads cracking on their 18-inch Goodyear Fortera HL tires. At the time, GM said that this would also eventually lead to a safety campaign to repair the problem, and the National Highway Traffic Safety Administration has just published those details. GM's recall covers 5,876 of the three Lambda platform crossovers to replace their tires. According to NHTSA, if the treads crack, there could be a loss of pressure and possible failure. Goodyear already announced its own recall of the tires after internal testing found small tread cracks. The company did not believe this was safety issue, but the problem did put the rubber out of compliance with federal laws. The business's safety campaign covered an estimated 48,512 tires. Of those, around 32,000 were reportedly made for GM to either be fitted to vehicles or sold as replacements. The remainder went to the aftermarket. Goodyear's portion of the recall is expected to begin around February 20. RECALL Subject : Tire Tread Cracking/FMVSS 110 Report Receipt Date: JAN 28, 2015 NHTSA Campaign Number: 15V044000 Component(s): TIRES Potential Number of Units Affected: 5,876 All Products Associated with this Recall Vehicle Make Model Model Year(s) BUICK ENCLAVE 2015 CHEVROLET TRAVERSE 2015 GMC ACADIA 2015 Details Manufacturer: General Motors LLC SUMMARY: General Motors LLC (GM) is recalling certain model year 2015 Buick Enclave vehicles manufactured December 9, 2014, to January 14, 2015, 2015 Chevrolet Traverse vehicles manufactured December 9, 2014, to January 20, 2015, and 2015 GMC Acadia vehicles manufactured December 9, 2014, to January 16, 2015, and all equipped with Goodyear P255/65R18 Fortera HL tires. These vehicles are equipped with tires that may experience tread cracking. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 110, "Tire Selection and Rims and Motor Home/Recreation Vehicle Trailer Load Carrying Capacity Information for Motor Vehicles with a GVWR of 4,536 kilograms (10,000 pounds) or Less." CONSEQUENCE: If the tire treads crack, a loss of tire pressure and possible tire failure may result, increasing the risk of a crash. REMEDY: GM will notify owners, and dealers will replace the tires that were manufactured within a specific date range, free of charge.