|Vettel fast on harder rubber|
Mercedes driver Valtteri Bottas topped the third day of Formula 1 testing at Barcelona, but Sebastian Vettel's pace in the Ferrari on two levels harder Pirelli tires brought smiles to the Ferrari faces.
Bottas posted a best lap of 1m19.705s in the morning session using ultra-soft rubber and Vettel lapped just 0.247s slower using the soft-compound Pirellis during the afternoon. The Super-soft compound falls between the ultras and softs.
Vettel spent much of the day running on medium-compound Pirellis, but bolted on softs for one run in the afternoon before returning to mediums.
Ride-buyer Lance Stroll crashed his Williams for the 2nd straight day. After his late-day spin on Tuesday and another off just shy of the lunch break earlier on Wednesday, the 18-year-old Canadian caused a third stoppage of the week when he went off and hit the barriers exiting Turn 5, damaging the front end of the Williams FW40.
Lewis Hamilton performed a full race simulation after taking over from Bottas for the afternoon, sticking to medium and soft tires and setting a best time of 1m22.175s on the latter compound.
Fernando Alonso in his Honda-powered MCL32 turned a 1m22.598s, left him 2.893s shy of Bottas' morning effort on the same tire, which means McLaren is out to lunch again in 2017.
DAY 3 RESULTS:
|1||Valtteri Bottas||Mercedes/Mercedes||1m19.705s||0.000s||75||Ultra Soft|
|3||Daniel Ricciardo||Red Bull/Renault||1m21.153s||1.448s||70||Soft|
|6||Marcus Ericsson||Sauber/Ferrari||1m21.824s||2.119s||126||Super Soft|
|10||Fernando Alonso||McLaren/Honda||1m22.598s||2.893s||72||Ultra Soft|
|11||Carlos Sainz||Toro Rosso/Renault||1m23.540s||3.835s||32||Soft|
|12||Alfonso Celis||Force India/Mercedes||1m23.568s||3.863s||71||Soft|
|13||Daniil Kvyat||Toro Rosso/Renault||1m23.952s||4.247s||31||Medium|