i should probably ask someone to take better screenshots...

Aoba Suzukaze from the anime, New Game gets her own livery for YCA-G's 2014 McLaren 650S Spider [EPM] V2.0

link to car: http://www.gtainside.com/en/gta4/cars/65918-2014-mclaren-650s-spider-epm-v2-0/

and yes, the provided UK number plate is optional