Sadly the £30 rumour is just a rumour. In theory, the engine ought to qualify as its emissions are only about 114 g I believe. But you have to pay the normal amount for a small car.
So it's £230 or thereabouts, how annoying, falls into the modern PLG group as vehicle is low volume and not type approved. A 1400 Supersport would be cheaper due to the VED rules of that time.
It will be at the under 1500ish cc number, about £145 a year.
The EU version, the 165, is sold with the 114g/km CO2 rating as they are factory only and built to the EU rules for certain bits fitted.
Ned, I see that you have got the new roll bar in (blog). I'll need to pick up a petty stunt at some stage. Was there a particular type for the 160? I haven't looked into it yet.
I can't find the thread but someone on here had seen and photographed Caterham's 160 demo car with a £230 disc on it when first launched.
edited to add: It is £145 as mentioned in the PLG section here https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/419799/V149_Budget_2015_Final_version.pdf
I've just had a look I think it was speedhunters.com they have an article on the 160 which includes wheel and exhaust upgrades , opencars is I think the specialist dealer and all there parts are on seven-160.com ,the exhaust mods look great as do the ally wheels.
I can confirm the road tax for the 160 is £145 even if it is factory built. I argued it as far as possible but DVLA will not budge, even though their own website states that a vehicle with the low emissions of a 160 will attract a road tax fee of £30! When the new Top Gear supremo reviewed the car he said the low emissions would attract £30 Road Tax but as long as it is classed as a "kit car" no matter who builds it, the standard small engine rate applies.
I'm not sure whether there's a specific strut... I would give Darren a call and ask him. I haven't yet fitted it, so can't tell you if it's the right size or not! But it does reach the inner skin on the outside passenger side.
EDIT: Just heard that I'm not on the Intro to Sprinting. I'm also doing a day at Goodwood next week. Stand by for yet another boring trackday video!
Link to Speedhunters article http://www.speedhunters.com/2015/06/less-is-more-caterham-160/
Ned. A shame that you could not make the sprint day. Enjoy Goodwood; this time at speed, I presume!