[The HACK]

Aero is a slippery slope. Far more slippery than suspensions, IMO. And it is FAR more dependent on your skills as a driver, since with added grip quickly disappears when you are SIDEWAYS. It's like the transition from driving on street tires to R-Comps.

That increase in grip level also comes at the cost of terminal speed too. I think aero is more beneficial on cars that have added "lightness". At 3,xxx lbs with driver the lift eliminated, or downforce created at speed isn't significant enough, but at 2,7xx? That same force is far more effective.

The other thing to think about, is how aero affect classing if you're competing. Take BMW CCA CR for example, I believe STOCK classes no aero is allowed. You add a splitter and a diffuser and all of a sudden you're in MOD class, where composite panels, stroker engines with stand alone ECUs, slicks rather than r-comps, and all sorts of exotic setups are common in the name of "competition."

If you're not adding aero for competition purposes, then it does go a long way to improve lap time. As my club racing buddy once commented to me. "[Hack], aero is like crack for racers. Once you go aero you will NEVER want to go back." Or as another CR buddy, after driving my MZ4 Coupe at Buttonwillow, commented: "[Hack], you need aero."

So yeah. If you guys end up making a functional aero diffuser here in the states, loop me in. I'm definitely interested.