The square plate in the middle should be the throttle body going to the plastic intake manifold. It looks like it has a coolant line attached to it which helps with cold-start drive-ability in cold weather.
The hood on the new BMW Z4 is MASSIVE. It shares the same basic shape as the new Supra where the hood is the top of the fenders too.
Space is tight as evidenced by the air box having a trough designed in to make space for the chassis brace.
The BMW booth was really lacking this year in my opinion. Aside from the new Z4 and S1000RR motorcycle, the only remotely cool thing was the M2 Competition with all the carbon fiber goodness. Check out that hood!
That’s the random, maybe interesting, stuff I noticed at the 2018 LA Auto Show. With the EVs, the coolest stuff, pun maybe intended, are the various cooling systems for the battery packs. The cooling systems basically determine how fast the cars can be charged and how long the cars can be driven hard. However, no one is showing off their cooling technology at the pedestrian auto show. Maybe at more engineering focus trade shows, they’d get shown off, but I haven’t had the opportunity to go to any of those. The pack Rivian showed didn’t even have any cooling, but it has come out they are using a cooling plate attached to the base of the cylindrical cells. The other big unknown is what Porsche is doing to cool their battery pack in the Taycan. Maybe we’ll see next year.