Apparently DC has a pinched nerve and did not test today leaving the young Vettel to take over in DC’s car for testing.
â€œUnfortunately David suffered a trapped nerve in his neck yesterday, so we took the precautionary measure of giving him a day to recover ahead of the final day of testing and this near to the start of the season,â€ explained Team Principal Christian Horner.
â€œIt was logical to use Sebastian Vettel to continue testing, evaluating various important pre-Melbourne developments. Weâ€™re grateful to Toro Rosso for making him available to us today. All being well, David will be back in the car tomorrow morning.â€
If I were DC, I would try not to make that a frequent deal as he may come back to work and find the locks have been changed.