For what it's worth I have Audi Q7 TDI, 176 kw/550nm towing GTR 34 / trailer all up 2100kg does it easy
Also have VW Touareg V10 TDI 230kw/750nm towing horse trailer all up 3200kg does it unstressed. Pardon the pun, horses for courses. Have driven new Jeep CRD, motor ok but not up to Audi/Porsche/VW TDI in terms of smoothness, low noise and economy.