Best of luck in the search. While we love our Mach E's fortunately it is a buyers market and there are lots of options.
My wife and I own the 2021 RWD California Route 1 (in profile pic) and a 2021 RWD Select, both bought used. Here is a link to the US warranty information for the 2021 Mach E
https://www.fordservicecontent.com/...-E-Warranty-version-2_frdwa_EN-US_06_2021.pdf
The only powertrain warranty service we have had is replacement of the 'fluid pump' for the rear motor on the CA Route 1. That was the diagnosis when at about 57,000 miles (less than 3,000 miles left in the powertrain warranty) there was a repeated yellow wrench with a 'powertrain malfunction - service vehicle soon' message. We had bought the vehicle with 18 months and almost 45,000 miles on it. The Select was purchased 2 years old with 10,000 miles on it. That had modules replaced also under warranty (presumably the bumper-to-bumper). We bought an extended warranty for the Select.
Page 11 of the warranty shows what is covered and what is not, the rest of the warranty has lots of qualifying language. I have copied and pasted below for convenience:
"Extended warranty coverage periods are available for certain vehicle parts and conditions. Specifically,
(1) Your vehicle’s Powertrain components are covered for five years or 60,000 miles, whichever occurs first. The extended Powertrain coverage applies to all components of the driveline that are not specifically covered by the Electric Vehicle Component warranty. Powertrain components that receive warranty coverage for five years or 60,000 miles may include gears, differential, shafts, fluid pumps, seals and gaskets, bearings, mounts, drive shaft, retainers, supports, universal and constant velocity joints.
(2) The high voltage battery and eDrive systems of your vehicle are covered by the Electric Vehicle Component coverage for eight years or 100,000 miles, whichever comes first. High voltage battery and eDrive components covered by this warranty include the high voltage battery assembly, Bussed Electrical Center (BEC), Battery Energy Control Module (BECM), on-board charger, Inverter System Controller (ISC), DC/DC converter, and eDrive. If a covered component requires replacement under the Electric Vehicle Component warranty, it may be replaced with a new, factory remanufactured, or factory refurbished
component, at Ford’s discretion. Refurbished battery components selected for your vehicle will align with your vehicle’s age and mileage and meet Ford’s requirements and standards."
