I try to keep my supplier's details confidential.so who makes them where are they made and what uk company is product testing them?
We have multiple suppliers that build our suspension to MeisterR specification.
We design the suspension, and test them in the UK.
We are currently working on the R35, the prototype suspension is on my own R35.
But right now I am not 100% happy with the suspension, and that is why it hasn't been releases.
It isn't that the prototype suspension are bad, it's just the GTR standard suspension are very good, and I wouldn't want to put on something worst than standard.
One of the main concern is road comfort, and we got a good handle on that already.
But most owners want the electronic damping to function and that is a slightly more complex challenge on an aftermarket coilovers; but we are looking into it.