An Instagram user by the name of @gideontherivian took an open trailer with a Shelby Mustang GT on it for a trip from Detroit to LA.

The combined weight of the R1T, Shelby, trailer, occupants and their cargo was 14,260 pounds.

After 118 miles of the trip the range loss was 62%

According to the center screen display, the electric truck has 44 miles of range with 37% battery remaining.

With a range of 315 miles (505km) on a full charge, that works out to just 118 miles from the 135kWh battery pack, or about 62% range loss.