Not surprising that Ferrari and whoever is a fan to go for the dry weight figure when reviewing it, while not explaining it fully.
PD probably recognised this and put the correct weight. Some car makers go to extreme lengths to keep weight down. In reading the McLaren F1 book Driving Ambition, it tells of the struggle to keep the F1 at 1000kgs, but they just couldn't do it, even with a full titanium exhaust unit.
And a little something from the pistonheads website about the new McLaren-
"Reducing weight is an obsession at McLaren, borne of the principles that have driven McLaren’s racing teams to more motorsport success than any other: recent developments have lowered the MonoCell’s weight further to below 80 kilos, whilst continued lightweight engineering supports McLaren Automotive’s plans to launch the 12C at a lighter dry weight than any competitor at around 1300 kilos.
McLaren Automotive is aiming for the 12C to be at least 75 kilos lighter than its nearest competitor and a long list of further lightweight solutions highlights the 12C’s introduction as a new type of sports car, driven by McLaren Automotive’s obsessive attention-to-detail. Examples include:
* Standard composite brake system of forged aluminium and cast iron is lighter than the optional carbon-ceramic brake system, saving five kilos
* Low-weight Lithium-Ion battery saves 10kgs
* Lightweight magnesium structural beam supports the dashboard
* Small, twin-turbocharged V8 engine delivers 600PS from 3.8-litre capacity
* Rear mounted engine cooling radiators minimise the pipework, the fluids contained within them, and therefore weight. They were also mounted in car line to minimise vehicle width and weight.
* Hexagonal aluminium wiring saves four kilos over circular wiring."