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Maxwell RHEV Prototype First Drive Review | More than meets the eye

The Maxwell RHEV looks just like any small business' panel van, sporting large vinyl graphics and unassuming steel wheels. You'd have no idea that the co-founders of the startup based out of Seattle had grafted a salvaged Voltec powertrain from a junkyard Chevy Volt into this Ram ProMaster. Somewhere, a battery pack lurks. Maxwell's co-founders, CEO Max Pfeiffer and engineer Trey Camp, open the cargo area to reveal a completely unaltered space. Both are ex-Tesla employees with a long fascination for the #vanlife movement – that their interests intersected in a hybrid cargo van isn't surprising once you start talking to them. This is their first vehicle, a salvaged ProMaster sidelined with a blown 3.6-liter Pentastar, and it's both their prototype and the only Maxwell in existence right now. That said, the company is building a low-roof version for a customer, which will be lighter, have less aero drag and therefore be more efficient. The company is just emerging from a stealth startup mode, and while their backstory is fascinating, I'm still wondering where the Volt's 18.4 kWh battery pack is. "There's nothing in the back ... we're able to get the battery underneath the floor, in the center," Pfeiffer says. Ducking my head under the side reveals, sure enough, a little underside blister that contains the battery, tucked up neatly. The other changes to the RHEV – short for Range-extended Hybrid Electric Vehicle – are minimal. He pops the hood. There are some rough edges, but the 1.5-liter, 101-horsepower engine and 48-kW motor fit comfortably on custom engine mounts and with re-routed exhaust, behind a fascia that improves aero and houses the charge port. Custom axles send power to unaltered Ram hubs and brakes. "This version, it's a little bit prototype-y," Pfeiffer says. "We've had more time to work with the CAD [computer-aided design, engineering drawings] we were able to get from GM and Chrysler, and we've done a better job packaging for production." GM already spent billions on the Voltec and its controlling software, and Maxwell can happily ride those coattails. Despite the help GM has lent Maxwell, there are no official ties. An emulator sends spoofed signals to the Ram instruments, which have a new custom-printed face. The Ram's body control module is left alone. For powertrain faults, Maxwell says the vehicle can theoretically be serviced by any Chevy dealer, and any issue with the rest of the vehicle can be handled by a Ram service shop.

Chrysler recalling 31k SUVs and vans

Chrysler is issuing recalls covering roughly 31,700 vehicles worldwide due to two separate problems. In both cases the company believes that most of the affected vehicles are either still on, or in transit to, dealer lots.
One recall covers roughly 10,700 Dodge Durango, Jeep Cherokee, Grand Cherokee and Grand Cherokee SRT models from the 2014 model year built between January 16 and April 17, 2014. The SUVs need a software update for the cruise control. It's possible that when the cruise is on and the driver presses on the throttle, the acceleration could last a second after the pedal is released or two seconds for the SRT. Afterward, they return to the speed originally set by the driver.
Chrysler says it isn't aware of any accidents, injuries or even reported incidents of this happening in the real world. Also, in all cases, if the driver presses on the brake, the cruise shuts off. The automaker believes that there are about 6,100 affected SUVs in the US, 950 in Canada, 425 in Mexico and 3,200 outside of North America. The software upgrade will be ready shortly, the company says.

Why the 2019 Ram HD Power Wagon still doesn't have a diesel

We were all pleased to see that the all-new 2019 Ram HD pickup truck was going to have an off-road Power Wagon variant again. In a world of high-speed, dune-busting off-roaders, the slower, trail-focused Power Wagon is refreshing. But we were surprised to see that, yet again, Ram wouldn't offer a Cummins diesel engine with it. It seems like such a perfect match with low-down torque and better fuel economy. So we asked Jim Morrison, the head of Ram, what's going on. As it turns out, there are a couple of reasons for only offering the gas engine. First is the fact that Ram can't fit the standard winch behind the bumper when the longer straight-six turbodiesel is in the truck. And since the Power Wagon has always had a winch, and it's a big part of the truck's image, that would be a non-negotiable. Another reason is that the big, heavy diesel engine requires slightly different suspension that has worse articulation than the setup for the gas model. That would also hamper the truck's off-road capability, and again would not be acceptable on the ultimate off-roading Ram. Of course this all left us wondering whether there might be a future one, and from what Morrison told us, it doesn't look like it. We asked him if there's demand for a diesel Power Wagon, and he said there's always a little bit, but there hasn't been enough to bring it to market. He also said that demand has actually decreased lately, and he attributed that to low fuel prices right now. So if you really want a compression-ignition Power Wagon, you'd better hope gas prices spike in the near-ish future. Related Video: