They had the traditional jaffa cakes, and a sign saying buy 2 for 99p - "mmm", I thought, then noticed different colour boxes - a purple colour, and then a greeny yellow colour. Turns out they've brought out two new ranges, blackcurrent (half way through a box of 12 now) and Zingy Lemon and Lime flavour!.
An information box also says, "Each McVitie's Jaffa Cake contains lots of energy, and only 1.0g of far per cake. That is why they are recommended by sports nutristionists." Bonus - you eat jaffa cakes and get fit!.
Update :- all gone!