An employee attaches a BMW logo to the hood of a vehicle at the BMW Manufacturing Co. assembly plant in Greer, South Carolina, on May 28, 2015. (fortune.com)
The focal point actually makes it appear as if the information is floating out above the hood of the vehicle so the driver's eyes are on the road and the information at the same time. (automobilemag.com)
Also, if you go this route, the tender is small enough you can enclose it under the hood of your vehicle, with just the extension cord sticking out from under the vehicle or wherever. (mechanics.stackexchange.com)