There you go, confirmation on the start date for the 21st season of Top Gear has come from Jeremy Clarkson himself.
After the break you can see a preview for a couple of possible segments thanks to the all seeing eye of YouTube.
UPDATE: As pointed out by FinalGear.com, 23 January is a Thursday and because Top Gear usually screens on a Sunday night timeslot in the UK the premiere for S21 is more likely to be 26 January; Australia Day!
UPDATE #2: Applause Store has announced tickets for filming at Top Gear’s Dunsfold Park studio will be available for Wednesday 29 January. Past experience says the show will air the following Sunday, 2 February.