you can barely go 140 , without your inners getting all shook up
Interesting thing about Tesla's.
At 140 km/h the energy usage is around 20kW of power on flat, 40 kW uphill, 5 kW downhill.
On a 200 km run at 150 km/h average speed, the Tesla S uses 66% of the battery capacity.
That would be about $6.50 in electricity if charging overnight, or $9 with free/included supercharging.
In similar conditions a Mercedes SUV would use $40 in fuel.
The savings for left lane drivers in such an aerodynamic electric car is significant if you are in a hurry...