Titanium

When I first heard last week that Tesla was offering Model S owners a free retrofit that would install its new underbody shield and deflector plates, I called my local Tesla Motors service center almost immediately. It seemed like a no-brainer. The titanium shield and two aluminum deflector plates were free, weighed only a few pounds, and had no effect on the aerodynamics of the car. MORE: NHTSA Closes Probe Into Tesla Model S Fires: "Defect Not Identified" Designed to deflect road debris away from the lithium-ion battery pack under the floor, the new underbody armor would presumably reduce...