They are good. I tow a 2002 Sterling Eccles Jewel (MTPLM 1465kg) with a 2002 130bhp TDCi LX estate with no problems. I also use it to regularly tow a car on a trailer which is right up to it's max. tow limit of 1800kg and the car pulls very well. The only downside is wheel spin when trying to pull away quickly and I find the seats a bit hard after a long journey. The early TDCi's suffered with engine management problems, but I am told this has been sorted on the newer models. Kerbweights are high, typically 1500kg to over 1600kg dependent on model. Most have max. tow limits of 1800kg (the 1.8 petrol is limited to 1300kg).