Weight check

TL;DR the Caterham specs are correct

There is some speculation around the actual weight of the 170.  Caterham advertisement announce 440kg for the 170R and 460kg for the 170S as it includes luxuries such as the windshield and heater.

The doubt comes from the CoC that states "Mass of vehicle in working order" and "Actual mass of the vehicle" would both be 570kg. Some additional reading led me to believe this is with a full tank (36kg) and a 75kg driver.

So what is it exactly ?

Based on a simple calculation, 570 - 75 -36 = 459kg, that might work.

On the way back from a Static Rally, I came accross a weighbridge located near a cereal warehouse of some sort. A good opportunity to put my Caterham on it and finally answer that weight question.

The scale did read 480kg, the car had about a third of tank (~10kg) and has the spare wheel (10.5kg)+holder+jack, as well as a 2kg Black&Decker toolkit, the full roof and long shower cap as well as 2 bottles of mineral water.  About 2kg have been saved with the new Inoxline Performance exhaust, the battery was still lead-acid.
 

All in all, 460kg is correct.