3 liters TDI Lupo or VW Polo TDI ???

Hello, I am new here in the forum and hope for your support. I am about to buy a new car. Since I drive about 33,000 km a year, I prefer a economical car. I have to choose between a 3 liter Lupo 14100 km (10979€) and a Polo 1.4 TDI 10800 km (11979€) with more extras (climate, central ver etc.). Can you help me further or reveal your experiences in this regard. Simple tips would also help me, as I simply do not decide Thank you very much.