Highest Mile Per High Tune for a Non-Modded car on the internet.
The Civetta in Beam NG is a newer car to the game that has the highest potential for fast quarter mile times in game.
With some changes to the tune the car can go easily into the 6's in the 1/4 mile. I believe this tune has one of the fastest MPH times in the 1/4.
Tune Download file below.