Here's a report that made us check the calendar to make sure about when in April this is. Mopar Insiders says it heard from one of its sources that Jeep's making changes to the powertrain lineup for the two-row Grand Cherokee and three-row Grand Cherokee L next year. Currently, the 3.6-liter Pentastar V6 making 293 horsepower and 260 pound-feet of torque is the entry-level engine in both models. The only way to upgrade that situation on the Grand Cherokee is to get the plug-in hybrid 4xe model that starts at about $24,000 more. The upgrade for the Grand Cherokee L is the 5.7-liter Hemi V8 making 395 hp and 410 lb-ft, a $3,995 option on the trims that offer it. For next year, Mopar Insiders says Jeep parent company Stellantis will insert a turbocharged 2.0-liter four-cylinder as the standard engine on the Grand Cherokee and Grand Cherokee L. The crazy bit is that, according to this rumor, the 2.0-liter will replace the Pentastar and the Hemi, and so be the only engine offered in the Grand Cherokee L. The Grand Cherokee will still be offered as a PHEV.