Who built better concept cars, BMW or Audi? Have your say

Italdesign’s take on what should have been the M1 replacement with a 5.0-litre V12 from the 8 Series. Swoopy. 

A concept harking back to the 328 Mille Miglia Touring Coupe, which won the Mille Miglia in ’40. Retro. 

Another 328 love-in, this version features a 3.0-litre straight six, CFRP bodywork, iPhones and leather straps. Kinky. 

A centenary celebration showcasing where BMW was to go next. Augmented reality and gullwing doors, apparently. Future. 

Sergio Pininfarina’s reworking of Audi’s Ur Quattro into a fully functioning prototype/concept. Stumpy. 

A groundbreaking aluminium spaceframe styled by Martin Smith and J Mays with a 6.0-litre W12. Shiny. 

Pure concept fantasy celebrating Bernd Rosemeyer’s Auto Union success with an 8.0-litre W16. Venty. 

Three-door compact SUV Q3 thing that aped the Allroad but had a carbon-fibre removable hardtop. Windy. 

Ultra-light urban transport idea powered by electricity designed by a team led by Stefan Sielaff. Scary.