I'm pretty sure the rattling/clicking you're referring to is the rear hub rather than the motor. Once you're freewheeling, the motor is doing nothing.
@Phil_G Ref Shimano vs Bosch, they brought out the new Bosch motor this year so you need to check which version the bike you are looking at is running. The older one in most 2019 and earlier models was starting to get a bit dated and was very chunky compared to the Shimano. It also had a lot of drag once you got past 15.5mph which is when the assistance is removed. The new one should be a good match to the Shimano. I run the Shimano (E8000 version) in a Canyon and can't fault it. The delivery of assistance feels really natural and it's very rare that I need to use anything beyond the lowest Eco mode. Ref the comments about gearing, although the manufacturers are fitting 1x12 to some of the latest emtbs, you really don't need them due to the assistance from the motor and you'll get more life out of the stronger 1x10 chain. I'm running the SRAM EX1 1x8 gearing and find it's great for technical riding. The Vitus E-Sommet got brilliant reviews for being so nimble and feeling more like a traditional mtb (the external battery helps the balance of the bike) so the E-Escarpe is likely to be right on the money too. It has the same 29 front 27.5 rear set up as the Canyon I ride so you get the front rolling over obstacle with ease and a great big chunky 2.8 tyre on the back for digging in on the technical climbs. That looks like a great bike.
