(rendering below, via Speed Arena–not actual car!)
By now i’m sure you have heard the debates about Formula One switching to a V6 Turbos OR 4-cylinder Turbos by 2013/2014. The latest news being reported by ESPN is saying that Audi was one of the primary reasons why F1 had initially agreed to switch to 4 cylinder turbos. Apparently Audi had originally said they would join, and the FIA obliged by accepting the idea of the 4 cylinder turbo. After the decision was made, Audi then flipped and decided the finances weren’t working out for them to join F1—and changed their mind. Following Audi’s uncertainty about joining F1, the FIA has recently decided that it is going back to the original idea of V6 Turbos.
I, personally, am a big fan of 4 cylinder turbos and feel they would have enhanced development of road going 4 cylinder turbos in street cars—-and am dissappointed that Audi retracted their original idea of joining F1. I think it would have been great if they had joined—possibly filling the void that BMW had left when they retreated from F1 a few years ago. Here’s hoping they change their minds again and decide to enter!
http://en.espnf1.com/fia/motorsport/story/52832.html?CMP=OTC-RSS
(thanks to Stampchez for the tip!)
IEDEI 
Turbo or no turbo, F1 cars should have at LEAST 6 cylinders.
Personally I think they should allow 4 and 6 cylinder turbos, and let the best car win.
they’ll inevitably have to restrict the displacement, so the 4 cyl will have the advantage. 6 clys will be no cometition. the end.
Let them all choose 12, 10, 8, 6, or 4 cylinders, turbos or non turbos. Then come up with some type of formula that takes Horsepower & Torque into account to equal the field a bit, but still keep the unique characteristics of each engine type to keep it interesting (these teams and FIA have engineers that rival rocket scientists, it wouldn’t be impossible).