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Tesla Mule One Build Thread

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4.8K views 10 replies 8 participants last post by  Hindley-Milner  
#1 ·
Hey everyone. I am the proud owner of the Tesla Mule One from Jenn Dietsch, as listed here on Lotustalk some time ago.

I've been trying for some time to uncover the story of this car, the original Tesla test vehicle. Much of the story is on Tesla - Where It All Began | The first Tesla. After it was stripped for parts to make the Mule 2, it changed owners a few times.

The first wanted to turn it into a race car, probably thinking he just had a stripped Elise chassis; but no, this is much more (and less!) than that. It would be a huge job to put an ICE motor back in - all the wiring harnesses are cut, and anything even resembling the original drivetrain is gone.

The second, as goes the story, was Rob & Jenn Dietsch, who held onto it for years in San Jose and elsewhere. And the third owner is me.

It's now up at the Electrified Garage in Seabrook NH. As many of you know, Rich Benoit aka Rich Rebuilds is a partner in that garage, and so the car can be seen on his Twitter/Reddit and you can spy it in the background of some of his build videos in various states of disassembly. Chad, also at Electrified Garage, is one of the best Tesla techs out there, and serviced Roadsters back at his days at the company. He is one of the best independent links to the past of this car, although he wasn't at Tesla far back enough to have seen it being built.

If you or someone you know was around to see this car in use, please contact me, as any and all information is helpful toward the rebuild.

Here are some pictures of it as it arrived:

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And an interior shot:

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More to come.
 
#5 ·
If we can vote, my vote is to build now what Musk would’ve done with today’s tech. I bet you can keep the weight significantly down vs the original roadster
 
#6 ·
Intent is to restore it to as much of its original condition as possible. That's an AC Propulsion AC150 kit and a custom battery that JB built. We have an AC150 already, I'm happy to report, but the battery is a much more complex story. More to come soon.

I agree @cyow5 that it would be fun to build a totally balls-out electric Elise - but that's not for this chassis. Maybe with another one...
 
#7 ·
Some progress as we take it apart. Thankfully, a lot of the wires were labeled, but as you might imagine, a ton were not. The factory fuse box was cut out of the car. Even the headlights terminate nowhere. A small battery and computer were left in the car (far right of dash); still investigating what these are. Strangely, the factory head unit was still in it. I guess JB/Elon/Martin liked music while they drove. The team is working to label every single one of these wires so we can move forward.

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#9 ·
True, but he said on the right side of the dash. If you look at pic #1 there's a box to the right of the head unit that is probably what he's talking about. I suspect you'll find some interesting code on that thing when you figure out how to talk to it. I'm guessing it's either the PCM or something to do with instrumentation and datalogging. Possibly both.

What did they have in the HVAC hole between the front crosmembers? Batteries? Odd that they didn't choose to stick a lot of battery in the radiator hole too - would help with weight and balance, particularly if they put batteries in the fuel tank well and in/behind the 'engine bay.'

Worth mentioning that S1 elises all have their battery in the crossmember hole because they don't have an AC evaporator taking up that space - much better from a weight and balance perspective.