2002 Toyota Sequoia Sr5 Sport Utility 4-door 4.7l on 2040-cars

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Jay Leno goes offroading with the legendary Ivan 'Ironman' Stewart

Jay Leno takes a step outside of his cavernous garage for this latest video for a jaunt into the desert to get a little dirty. He meets up with off-road racing legend Ivan 'Ironman' Stewart, who has multiple Baja 500 and 1000 wins in his motorsports career, to play with a Toyota Tundra in the sand.
Unfortunately, Leno doesn't get to interview Stewart too deeply about his long history in racing, but Ironman does talk a little bit about reading the trail while speeding through the desert. In lieu of a great conversation, there is a ton of high-quality footage of the Toyota bounding through the desert.
This clip feels more like a marketing effort than the usual output from Jay Leno's Garage, but it's still great to see Stewart behind the wheel sliding a truck, just like old times. The two of them even take the truck on a somewhat humorous journey at the end of the video.

The tumultuous history of the diesel engine

Volkswagen, diesel's most enthusiastic patron, deceived everyone about the amount of emissions its cars were putting out. We have covered this latest massive automotive scandal in great detail, and there are surely more fascinating revelations to come. It turns out that this is just the latest episode in the epic story of the controversy and intrigue surrounding the diesel engine, and its inventor. This is the story of the tumultuous birth and interesting evolution of the compression-ignition engine at the center of the VW scandal. Napoleon III Got Rudolf Diesel Deported Rudolf Diesel was born in Paris in 1858. His Bavarian parents had settled in France where his father, Theodor, was a leather goods manufacturer. When the French Parliament declared war on Prussia, kicking off the Franco-Prussian war, the Diesels fled to London. When he was 12, Rudolf went to live with his aunt and uncle in the Bavarian university town of Augsburg. It was his parents' hometown, and importantly, it's where Rudolf began studying at the Royal County Trade School. His time in Augsburg, graduating at the top of his class from trade school that laid the groundwork for all that was to come. Diesel Nearly Blew Himself Up An early career in refrigeration saw Diesel running R&D in Berlin for Linde, a company started by refrigeration pioneer Carl Von Linde, one of Diesel's professors. His ambition to branch out beyond refrigeration, and his deep understanding of thermodynamics, led to efficiency experiments with steam engines. Diesel was trying to create an engine that didn't waste heat from the combustion process, therefore getting the most work out of the fuel. Instead, he was nearly killed when an experimental ammonia vapor steam engine exploded. Recovery took many months, and during some of that time, he was no doubt planning his next experimental engine, based on the theoretical Carnot cycle. His Engine Was An Attempt To Stick It To The Man Steam engines were expensive to run and wasteful. Diesel thought the efficiency of his design would be a way for the small business to compete with the dominant industrial giants. It was, and it did, but big business is equally passionate about chasing efficiency. Diesel engines quickly proliferated in industries both grand and cottage. Rudolf Didn't Really Invent The Diesel As We Know It Instead, he improved an existing one to a significant degree. The Diesel engine could be considered an evolution of the "hot-bulb" engine.

Toyota recalling 615k Sienna models over rollaway risk

Toyota has announced a recall affecting approximately 615,000 Sienna minivans due to a possible rollaway risk. All of the vehicles in question are from the 2004, 2005, 2007, 2008 and 2009 model years.
In an official statement, the automaker states that the problem stems from the vehicle's shift lever assembly. "Because of the potential for damage to the shift lock solenoid installed in involved vehicles, there is a possibility that the shift lever could be moved out of the 'P' position without the driver depressing the brake pedal," Toyota said. Because of this fault, the affected Sienna models could roll away without warning, increasing the risk for a crash.
Owners will be notified via first class mail, and the affected Sienna models can be taken to Toyota dealerships to have the shift lock solenoid replaced with a new one. Have a look below for the automaker's official release.