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Carpool Deville aims to be the world's fastest hot tub

The world needs crazy inventors with wild dreams. While we might not long for the things that they create, their contraptions certainly make the day a little more enjoyable. Take the Carpool Deville as an example. Nobody (well, almost nobody) is asking for a hot tub fashioned from a 1969 Cadillac that is still drivable. But now that you know that such a beast exists, don't try to tell us you aren't at least intrigued.
The team behind the six-year-long project has a pretty ingenious setup worked out. The Caddy's original 472-cubic-inch (7.7-liter) V8 both provides propulsion and heats the water. The interior is entirely replaced with a watertight, fiberglass tub that includes working jets, and the controls are all done by hand.
As if just building a mobile hot tub isn't enough, the team behind the Carpool Deville plans to take it racing too. Specifically, they intend to go to the Bonneville Salt Flats later this year to make a top speed run while immersed in water at over 100 degrees. They even have a roll cage all set to install to meet the safety requirements there.

2014 Cadillac ELR whirs into Jay Leno's Garage

While Jerry Seinfeld was gallivanting around LA with Sarah Silverman in a Jaguar XKE, our favorite car-loving comedian, Jay Leno, was checking out the all-new 2014 Cadillac ELR. Set to go on sale later this year, Cadillac brought its ELR to Jay Leno's Garage to show off some of its styling and technology as well as give Leno some seat time in the range-extended EV. Leno owns both a Volt and a CTS-V, and the ELR is a kind combination of the two (sort of).
In this episode, Leno spends some time talking to Frank Saucedo, GM director of advanced design, and ELR chief engineer Chris Thomason before logging a few miles on the sleek coupe. Interestingly, it seems that GM has definitely changed its tune a little since the introduction of the Volt a couple years ago; Saucedo and Leno both refer to the ELR as a hybrid, and Thomason says that it gets the "bulk of its propulsion" from the electric motors. Whatever you want to call it, scroll down to watch the latest episode of JLG with some great information and driving shots of the plug-in Cadillac.

2017 Cadillac CT6 Plug-In Hybrid Drivers' Notes Review | Seamlessly green

In many ways, the Cadillac CT6 Plug-in Hybrid is the most interesting car the brand sells. Despite having a turbocharged four-cylinder hybrid powertrain, it makes the most torque of any CT6, even the twin-turbocharged V6 model. It also has a claimed electric range of 31 miles and can still manage a combined fuel economy of 26 mpg with just the gas engine. Even its origin is interesting, since its final assembly point is China. To cap things off, it's also the second most expensive CT6 in the range. To find out if the CT6 is worth that money, and has more to offer than fun facts, we spent some time behind the wheel. Editor-in-Chief Greg Migliore: I achieved 34.1 miles per gallon for my roughly 14-mile roundtrip in the CT6 hybrid. This sedan is a rolling example of where luxury is heading in the near term: Existing models souped up with hybrid tech, and the green features will go along way toward keeping big sedans like this relevant. It's a smart play for Cadillac to add a product like this. Otherwise, it's a fairly standard-issue CT6, which is a solid car. The flashy head- and taillights look great. The design is angled, creased and nicely proportioned. The interior is comfortable and roomy. It's a nice car. Cadillac invested a lot in the CT6, and it shows. Rumors have long swirled that the brand will add a larger flagship, though in this climate, that's hard to envision. For now, the CT6 does the job as Cadillac's standard bearer. Associate Editor Joel Stocksdale: Of all the different CT6 variants available, the CT6 PHEV is the one I would pick for myself. Why? Because the hybrid powertrain finally delivers on the quiet, refined driving experience I want from a flagship luxury sedan. I was a bit surprised by this, too, since the gas engine under the hood is the 2.0-liter four-cylinder used elsewhere, which isn't the smoothest thing in the world. But assist from the electric motor helps keep the four-cylinder from having to wind up too much to move the big Caddy, and when the gas engine does rev hard, it's well muffled by whatever insulation is in the car. Besides aural refinement, the power delivery is oil-on-ice slick. The blending of electric and gas power is seamless. There's no waiting on the turbo to spool up, and there's no loss of power at higher rpms with the electric motor. They work in perfect harmony providing excellent low-down grunt and solid upper-end power. The transmission is super smooth, too allowing for happy wafting wherever you go.