Our good friend Forbes brought this to our attention…Could the next Nissan Z be powered by a 4-cylinder instead of 6? Read the scoop over on AUTOBLOG. A lighter and smaller Z is a step in the right direction but how will Z fans respond to motivation from a four-banger? This isn’t a new concept as folks have replaced their vintage inline-6 240z’s and current VQ-based V6 drivetrains with four-cylinder SR20DET powerplants. Fuel efficiency or not, I can’t think of any four cylinder that can replace the mellifluous, exotic exhaust note of a Nissan 6-cylinder engine. What do you think?