Depending on price I may also consider the Smart forfour. Its going to be based on the Twingo (Renault Daimler tie up) so mechanics could be similar. Although I will be curious to see if the forfour will offer different powertrain options. Definitely it will offer a more premium feel than the Twingo III or the 108, but again all dependent on pricing.Welcome to the Peugeot 108 forums!
I too am considering the New Twingo III, new Toyota Aygo, new Citroen C1, and maybe I might stretch to a Peugeot 308! Looking forward to bantering with everyone here while I make a decision over the next few months.