Just my guess, but even the smaller EarthRoamer likely needs the extra torque of the diesel. Though after I say that, I think of the 36' Winnebagos that are running the V10s. Not too fast, but they roll down the road at 70+ MPH. Haven't seen the specs on the new 7.3 gas engine, but it might be...
We have a Let's Go Aero cargo box that we run on the rear of our van or SUV. It holds two road bikes with the front wheels off and would likely hold two mountain bikes if you removed the handlebars also. Keeps them looking like new and has room for the front wheels, helmets, pump, etc.
This article says they will extend into the 2020's
“Connectivity allows fleet customers to monitor driver behavior and fleet maintenance needs,” Hinrichs said.
Back to the OP topic, I found a copy of the Earth Roamer brochure from 2004. Check out the list prices. Seems like they have easily exceeded the cost of living changes.
EarthRoamer modifications run approximately $108,000 for a fully equipped XV-LT model and
$103,000 for an XV-LS...
FWIW, from the Tesla Model S manual. Maybe it works below that temp though.
Temperature Range Do not expose Model S to ambient
temperatures above 140° F (60° C) or
below -22° F (-30° C) for more than 24
hours at a time.
Looks like a good option. We are currently using Let's Go Aero box. It holds 2 road bikes with the front wheels removed. It also slides out about 18" to allow access to the rear doors. In order to use it with mountain bikes, you would also need to remove the handle bars. It's pretty stable off...
I have no idea what I am talking about, but can you almost double the pulling power by using a pulley in the middle and bringing the cable back to bumper hooks? Seems like that would also get more power by getting more cable off the spool.
Apologies for the lame artwork, but I have been trying to figure out how to rack bikes on this rig and keep them clean. I think this rack Thule Thule T2 Pro XT 2 - 2" Rack might just fit between the lights and above the bumper lights to allow me to get a custom road cover made to keep the bikes...