New Car December 18 or January 19?

[Gnasher]

I looked into this previously as when I got my GTI was (by luck more than anything) on the transition from 63-14 plates.

Allegedly at about 3 years old (and this is a big generalisation) the depreciation on normal months was on average £200, whereas for a month where the plate changes or a year changes it's around £800.

No idea how accurate/truthful it is, but I read it on the internet around 5 years ago lol.

All that said, I'd still get it in December.

[Exonian]

I looked into this previously as when I got my GTI was (by luck more than anything) on the transition from 63-14 plates.

Allegedly at about 3 years old (and this is a big generalisation) the depreciation on normal months was on average £200, whereas for a month where the plate changes or a year changes it's around £800.

No idea how accurate/truthful it is, but I read it on the internet around 5 years ago lol.

All that said, I'd still get it in December.

That’s not too far off.
I think VW used to work on around £250 a month deprecation on a Golf GTI/R for normal months and when they’re fairly new (ignoring the initial new car drop) then a larger drop when the plates change if you’re looking at part Ex prices. It drops to around £200 a month after a couple years but there’s also seasonal adjustment and supply and demand anomalies to take into account.
I dread to think what the monthly drops are on a high end BMW 6 series. 

Ironically the highest depreciation is when the car has plenty of warranty and it evens out loads once it hits 3 years and you have to pay for your own repairs.

[Mark V GTD]

In contrast to everyone else - I would wait a week and have it registered as a 2019 car.