Autoweek and Fourtitude were able to enjoy some seat time in the Audi R8 V12 TDI LeMans concept before its official unveiling in Geneva last week. Their drive was short (about an hour with a 50 ...

var digg_url = 'https://digg.com/autos/500hp_23_mpg_Audi_R8_V12_TDI_concept_leaked_before_Detroit'; Audi's having a spot of trouble keeping a lid on things ahead of ...

Perhaps demand wasn’t there, perhaps Audi wasn’t happy with the technology as it stood, but the R8 e-tron was always a car before its time for Ingolstadt. Contrast this to the R8 V12 TDI ...