Superb 2016 2.0 TDI SE manual 85000 miles 

                               Or

Superb 2012 2.0 TDI CR DPF Elegance auto 27000 miles 

Any known pitfalls to worry about? 

i am not aware of the relative pitfalls of these models but offer a general point. The Elegance is 8 years old with very low average annual mileage of about 3,500. We are often warned that diesel engine vehicles are not suitable for low mileage users because of potential DPF issues, so I'd be wary of this one.

The MkIII every day of the week.

 

As mentioned, 3,500 miles a year is crazy on a DPF equipped diesel.