A Renault 50 series that has been built into a horsebox. Curb weight is 3.7 t.
Two fat poines weight about 800 kg together.
There is no official economy figures but typical community is between 11 - 15 l / 100km
Last time I performed a test (2015) with 2 horses and a leaking fuel pump I got 12,5 l / 100km
(2015) Tyre over inflation 4,7 bar -> 6 bar
(2016) Motor oil Mineral 15W40 -> semi synthetic 10W40
(2016) Mechanical fan to electrical
(2016) Brake refurbish (one caliper was binding)
Air dam most likely a bumper of another vehicle.
Crankcase gases into air intake via a catch can.
Change gearbox and axel oil to synthetic
Storage lockers under the floor behind the side skirts to help with under body aerodynamics.
Water wetter, to improve cooling so the fan doesn't have to run so much.