Its gonna be tough to beat the reliability of the toyota mate, but I gotta say the Audi A4 1.9TDI is up for the challange. My dad has got one, he bought it new to use as a company car. It has now covered over 140k and the only repair it has needed besides brake pads was a cv boot. Its had a hard life and done a bit of towing aswell and it still drives like new