How Close To This Could Be Legally Driven In The UK ?
How Close To This Could Be Legally Driven In The UK ?
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V8RX7

Original Poster:

28,982 posts

293 months

Wednesday 7th September 2016
quotequote all
I've recently come across this pic taken of a very stripped down MX5 - presumably in the USA



Obviously it would be illegal here but how far could you go ?

If you:

Added mud guards
Covered the sharp edges
Added rear plate

Would it be anywhere near legal ?

Do you need doors ?

I presume you need front bumper and bonnet for pedestrian crash reasons but do you need a rear bumper etc ?

I'm not going to do it - just wondered.



Tom_C76

1,923 posts

218 months

Wednesday 7th September 2016
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Don't need doors, most Seven type cars don't have them (Caterhams, Westfields etc.)

KarlMac

4,627 posts

171 months

Wednesday 7th September 2016
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Google Exocet kit cars

Red Devil

13,524 posts

238 months

Wednesday 7th September 2016
quotequote all
Tom_C76 said:
Don't need doors, most Seven type cars don't have them (Caterhams, Westfields etc.)
Nor an Ariel Atom. smile

V8RX7

Original Poster:

28,982 posts

293 months

Wednesday 7th September 2016
quotequote all
But all those cars passed Construction and Use regs without doors.

Similarly old cars don't need seatbelts but you can't remove them from a modern one.

supersport

4,638 posts

257 months

Thursday 8th September 2016
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You wouldn't want an accident in that, ouch.

Pistom

6,422 posts

189 months

Thursday 8th September 2016
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I think setting fire to your car to make it lighter is a bit extreme.

The issue I see is sharp edges.

Get rid of the sharp edges, make sure you have lights, number plate, tyres covered and it should be OK. If is passes an MOT then it should be OK.

PoleDriver

29,599 posts

224 months

Thursday 8th September 2016
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Do MX5s have a proper chassis? I'd be worried about the loss of strength without so much of the body!

TallPaul

1,524 posts

288 months

Thursday 8th September 2016
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I'm guessing its about to form the basis of a rebodied kit car?

TooMany2cvs

29,008 posts

156 months

Thursday 8th September 2016
quotequote all
V8RX7 said:
Obviously it would be illegal here but how far could you go ?
They don't tend to deliver bus chassis like this any more...


V8RX7 said:
If you:

Added mud guards
Covered the sharp edges
Added rear plate

Would it be anywhere near legal ?
Your big problem there would be that you've modified the monocoque. On something with a chassis, you'd be much more free to strip extraneous guff off.
Then, of course, if you purpose-build something, you can get much more minimal. I've driven one of these on the road - perfectly legally...

V8RX7

Original Poster:

28,982 posts

293 months

Thursday 8th September 2016
quotequote all
PoleDriver said:
Do MX5s have a proper chassis? I'd be worried about the loss of strength without so much of the body!
No.

Front and rear subframes but as there is no roof as long as you keep the floor, sills and where the suspension mounts I can't see that removing doors, bonnet, wings, boot should affect it - except in a crash.

V8RX7

Original Poster:

28,982 posts

293 months

Thursday 8th September 2016
quotequote all
TooMany2cvs said:
They don't tend to deliver bus chassis like this any more...
I'd forgotten that they used to do that - I presume their H&S rules or construction and use / registration rules prevent it.

But taking this to the next level then - if you bought a chassis vehicle could you strip it and drive it like that ?

CrutyRammers

13,735 posts

228 months

Thursday 8th September 2016
quotequote all
V8RX7 said:
I'd forgotten that they used to do that - I presume their H&S rules or construction and use / registration rules prevent it.

But taking this to the next level then - if you bought a chassis vehicle could you strip it and drive it like that ?
Yes, but if you make any "major modifications" to the structure (which is where it gets complicated), you'd have to put it through IVA and get it approved, like you do with a new build kit car.

TooMany2cvs

29,008 posts

156 months

Thursday 8th September 2016
quotequote all
CrutyRammers said:
V8RX7 said:
But taking this to the next level then - if you bought a chassis vehicle could you strip it and drive it like that ?
Yes, but if you make any "major modifications" to the structure (which is where it gets complicated), you'd have to put it through IVA and get it approved, like you do with a new build kit car.
Ah, but if you aren't modifying the STRUCTURE (the chassis)...
https://www.gov.uk/vehicle-registration/kitconvert...

jith

2,752 posts

245 months

Thursday 8th September 2016
quotequote all
V8RX7 said:
I've recently come across this pic taken of a very stripped down MX5 - presumably in the USA



Obviously it would be illegal here but how far could you go ?

If you:

Added mud guards
Covered the sharp edges
Added rear plate

Would it be anywhere near legal ?

Do you need doors ?

I presume you need front bumper and bonnet for pedestrian crash reasons but do you need a rear bumper etc ?

I'm not going to do it - just wondered.
I'm getting to the point where nothing surprises me on here; but this just about managed it. Why the hell would you literally risk your life driving on the road with something like that? That guy has an excuse. He's American!

Are you nuts?

J

motco

17,649 posts

276 months

Thursday 8th September 2016
quotequote all
V8RX7 said:
TooMany2cvs said:
They don't tend to deliver bus chassis like this any more...
I'd forgotten that they used to do that - I presume their H&S rules or construction and use / registration rules prevent it.

But taking this to the next level then - if you bought a chassis vehicle could you strip it and drive it like that ?
AEC chassis used be driven from the factory in Southall (Middx) through Greenford Broadway en route to (I assume) the body shop in Aldenham, Herts.

TooMany2cvs

29,008 posts

156 months

Thursday 8th September 2016
quotequote all
jith said:
V8RX7 said:
I'm getting to the point where nothing surprises me on here; but this just about managed it. Why the hell would you literally risk your life driving on the road with something like that? That guy has an excuse. He's American!

Are you nuts?
How is it "risking your life" any more than, say...





shakotan

10,862 posts

226 months

Thursday 8th September 2016
quotequote all
TooMany2cvs said:
CrutyRammers said:
V8RX7 said:
But taking this to the next level then - if you bought a chassis vehicle could you strip it and drive it like that ?
Yes, but if you make any "major modifications" to the structure (which is where it gets complicated), you'd have to put it through IVA and get it approved, like you do with a new build kit car.
Ah, but if you aren't modifying the STRUCTURE (the chassis)...
https://www.gov.uk/vehicle-registration/kitconvert...
MX5s are monococque with subframes.

As soon as you cut the monocoque you lose the ID of the vehicle under the 8-point rule for Radically Altered Vehicles, which renders it unregistered.

https://www.gov.uk/vehicle-registration/radically-...

To be put back on the road it would have to undergo an IVA test, and there's no way that chopped up MX5 would pass the test.

TooMany2cvs

29,008 posts

156 months

Thursday 8th September 2016
quotequote all
shakotan said:
TooMany2cvs said:
CrutyRammers said:
V8RX7 said:
But taking this to the next level then - if you bought a chassis vehicle could you strip it and drive it like that ?
Yes, but if you make any "major modifications" to the structure (which is where it gets complicated), you'd have to put it through IVA and get it approved, like you do with a new build kit car.
Ah, but if you aren't modifying the STRUCTURE (the chassis)...
https://www.gov.uk/vehicle-registration/kitconvert...
MX5s are monococque with subframes.

As soon as you cut the monocoque you lose the ID of the vehicle under the 8-point rule for Radically Altered Vehicles, which renders it unregistered.

https://www.gov.uk/vehicle-registration/radically-...

To be put back on the road it would have to undergo an IVA test, and there's no way that chopped up MX5 would pass the test.
Yes, we did that bit - which is why he specifically said
V8RX7 said:
...if you bought a chassis vehicle...

shakotan

10,862 posts

226 months

Thursday 8th September 2016
quotequote all
TooMany2cvs said:
shakotan said:
TooMany2cvs said:
CrutyRammers said:
V8RX7 said:
But taking this to the next level then - if you bought a chassis vehicle could you strip it and drive it like that ?
Yes, but if you make any "major modifications" to the structure (which is where it gets complicated), you'd have to put it through IVA and get it approved, like you do with a new build kit car.
Ah, but if you aren't modifying the STRUCTURE (the chassis)...
https://www.gov.uk/vehicle-registration/kitconvert...
MX5s are monococque with subframes.

As soon as you cut the monocoque you lose the ID of the vehicle under the 8-point rule for Radically Altered Vehicles, which renders it unregistered.

https://www.gov.uk/vehicle-registration/radically-...

To be put back on the road it would have to undergo an IVA test, and there's no way that chopped up MX5 would pass the test.
Yes, we did that bit - which is why he specifically said
V8RX7 said:
...if you bought a chassis vehicle...
Apologies, I skip read.

Then it would be a case of sifting through Constructions and Use and applying the bare minimum requirements from it.