"he Wrangler's integration of gas and electric power is excellent. The 4xe seems to always know where the power should come from and puts that source at the fore with little hesitation. Aside from the lack of engine noise when running in EV mode, it's hard to tell the Wrangler is even a PHEV when under throttle.
"Rather than mounting the motors directly to an axle, engineers attached one to the front of the turbocharged 2.0-liter four-cylinder as a belt-driven generator — like what Ram offers on its eTorque mild hybrids. The other motor, which is responsible for electric drive, lives at the front of the transmission housing and replaces the gearbox's torque converter. This approach yields seamless hand-offs from gas power to electric and back again.
"That said, under electric power alone the Wrangler's already leisurely straight-line performance is slower still. You'll enjoy a brief surge of torque off the line, but with just 134 horsepower and 181 pound-feet from the transmission motor, the Wrangler runs out of steam quickly. Dig into the throttle enough and the gas engine will kick on, even in electric-only mode.
"Performance is far brisker with the gas engine and electric motors working in tandem, where the Wrangler 4xe conjures up 375 hp and 470 lb-ft of torque. The abundant and immediate twist makes freeway passes a less stressful affair than in a V6 model, and the clever integration means seamless performance the rest of the time.
"The only other major impact the powertrain has on the broader Wrangler package are the regenerative brakes. Jeep has tuned these stoppers well, avoiding the poor low-speed manners found on other hybrids and crafting a package that rarely feels different than any other Jeep. "Really, the engineers deserve praise for building a plug-in hybrid Wrangler that feels so similar to the familiar ICE-powered SUV."
— Brandon Turkus, motor1.com