Yup. Diesel cars can pull of 5l/100km quite easily (even VW Passat from 1998 can do that). My diesel Skoda Fabia consumes 4.6l/100km at 90kmh in highway. If conditions are not terrible, I hover around 5l/100km on average in mixed conditions (city and highway). Though few major traffic jams can ruin statistics pretty badly. Also in winter average is about 5.6l/100km.
Maybe /user/emp_zealoth had petrol cars in mind? I've not personally seen a petrol (non hybrid) car consuming less than 7l/100km and when I had one it was 10l/100km (8 if I was lucky) and it was small Peugeot 306.
To rant even more.. IMHO, those fuel consumption tests are a total fraud. Look at new diesel sedans, local dealer declares that huge VW Passat TDI uses 4l/100km, or Skoda Octavia TDI (GreenLine or something) uses 3.1l/100km. Maybe it's true when you're driving at 90km/h with wind blowing in your tail and slight downhill.
Maybe /user/emp_zealoth had petrol cars in mind? I've not personally seen a petrol (non hybrid) car consuming less than 7l/100km and when I had one it was 10l/100km (8 if I was lucky) and it was small Peugeot 306.
To rant even more.. IMHO, those fuel consumption tests are a total fraud. Look at new diesel sedans, local dealer declares that huge VW Passat TDI uses 4l/100km, or Skoda Octavia TDI (GreenLine or something) uses 3.1l/100km. Maybe it's true when you're driving at 90km/h with wind blowing in your tail and slight downhill.