2005 Nissan Sentra 1.8 on 2040-cars

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Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.

Nissan owners complain to feds about rusting floors

"You can feel it's soft right here," Jeff Talman told KSHB. "Right under his driver and passenger seats, the floorboards were rusting from the inside out," a KSHB reporter said. "This is a seven-inch area where it's actually rotted up here," Talman said. That was Jeff Talman, just one of many who have had issues with rusting floorboards in Nissan Altimas. KSHB reported the National Highway Traffic Safety Administration has received more than 400 complains about rust issues in 2002-2006 models. NBC highlighted a Chicago woman's 2005 car, which had rusted so much the floorboards were actually crumbling. "The hole was big enough to fit her foot through," NBC reporter Tom Costello said. "I'm not Fred Flintstone. This is not a good thing," Marie DeMaria said. While NBC reports snow and road salt could account for rust damage in some vehicles, that's probably not the cause in places that don't get snow and ice. And complaints are coming in from all over the country. Both Toyota and Ford have recalled hundreds of thousands of vehicles in the past few years because rusting underbody parts made the vehicles fall apart. Despite the number of complaints, Nissan isn't recalling the Altima vehicle models in question. "It's not a safety recall problem that's going to cause immediate death and injury if you have a hole in the floor. As a result of that, what we've seen is that Nissan has been able to get away with this problem," auto safety expert Sean Kane told WBZ-TV. KSHB reports the age of the cars is another way Nissan is able to avoid covering cost to fix them. "Once it's out of the warranty period, obviously they don't have any legal obligation. It becomes more of a customer service issue of whether they want to deal with it or not," body shop owner Bill Eveland said. NBC did reach out to Nissan for comment, but the carmaker reiterated that both it and the National Highway Traffic Safety Administration do not consider the rust problem to be a safety defect. This video includes an image from Getty Images.

Nissan takes over naming rights for Tennessee Titans stadium [UPDATE]

UPDATE: Nissan has released a pair of renderings showing how the stadium could look when the transformation is complete. Check them out in the gallery above. Nissan looms large in Nashville. That's where its North American headquarters are based, and just 25 miles down the road in Smyrna is its massive assembly plant. But it's about to become an even bigger part of the Tennessee metropolis as the Japanese automaker has acquired the naming rights to the stadium where the Tennessee Titans play. The deal, confirmed by Nissan in correspondence with Autoblog this morning, will see the sports complex switch names from LP Field (currently named for building materials firm Lousiana-Pacific Corp.) to Nissan Stadium. The arrangement will be valid for the next 20 years. What's more, the deal will be in place in time for Nissan to introduce its new Titan pickup that shares its name with the football team, despite being built in Mississippi. The contract will also see Nissan become the official automotive partner of the Titans. Aside serving as the NFL team's home, the Nashville stadium also plays host to Tennessee State University football, the Music City Bowl, and numerous other events. Country music fans may be more familiar with the CMA Music Festival, held every year at the stadium and nearby Riverside Park, but we're most looking forward to a Rams-Titans showdown to determine who plays the best ball and makes the best truck. Of course, Nissan isn't the only automaker to have its name on a major sports complex in America. In fact Nissan Stadium won't even be the only NFL stadium named after a car company: Mercedes has the naming rights for the Louisiana Superdome that the New Orleans Saints call home, and the Detroit Lions play at Ford Field. (Sorry to break it to you, but Tiger Stadium had nothing more to do with Sunbeams than New York's Polo Grounds did with little Volkswagens or Philadelphia's Lincoln Financial Field has to do with leasing Town Cars.)