No launch plans revealed by Marussia yet

The 2013 grid will begin to take shape on Monday.

Lotus will become the first team to reveal its new car, with an online launch of the E21 broadcast via the internet from its Enstone base on Monday evening.

Most other teams will follow suit in short order, in time for the first test of the official pre-season period at Jerez starting early next week.

The only exceptions are Williams, who will wait until the second test in Barcelona to run the FW35, Marussia - having divulged no details of its 2013 car launch plans - and HRT, the Spanish team that has folded.