Ford has released information on power and torque ratings for the new 2020 Transit.
The horsepower rating for a 2.0L turbo diesel is surprisingly high. Torque per liter is quite high also, making this little 4-banger more powerful than the outgoing 3.2L in-line 5-cylinder.
https://www.fleet.ford.com/resources...ay_Chassis.pdf
Larger fuel tank at 31 gallons should help, particularly for gasoline motorhomes that get less MPG.