MEXICO CITY, Mexico -- If it stays dry, the Mexican Grand Prix is going to be all about strategy. The big question is whether drivers one-stop or two-stop, with Mercedes, Red Bull and Ferrari already making their first move in Q2 when they decided which compound to start the race on. Red Bulls choice to use the super-softs when they had the pace to use the softs suggests they are targeting a two-stop, whereas Mercedes and Ferrari will start on the soft, potentially giving them a long enough first stint to make a one-stop work.Fridays practice data suggests a two-stop (or even three-stop) is the quickest way to complete the 71 laps, but the cooler conditions two days ago were causing the two softest compounds to grain and therefore lose performance. Graining was not such a big problem in Saturdays hotter conditions, so if its hot on Sunday a one-stop becomes more realistic whereas overcast conditions are likely to favour the two-stop.The risk of the two-stop is that you get dropped into traffic after each pit stop and lose time. Traffic for a number of laps at this circuit has the potential to negate the performance benefit of the new tyres and the overall speed of the strategy. A one-stop has no such risks and allows the team to better cater for a potential safety car period by keeping its options open for longer.The key to the one-stop is the medium tyres, which were experiencing next to no degradation on Friday and in some cases were getting quicker as the fuel load and the stint went on. If Mercedes, for example, one-stop they can make their single tyre change at a point when they know they will maintain track position at the front. With track position secure and overtaking difficult, even a quicker car coming up behind on a two-stop is unlikely to be a threat.The other aspect of the two-stop v one-stop debate is the start. By starting on the super-softs, Red Bull will have more startline grip for the long run down to Turn 1. If they can get ahead of the Mercedes and build a gap, they could start to enjoy the pace benefit of the two-stop and force Mercedes to try to undercut on a two-stop strategy of their own. Leading out of Turn 1 will be crucial to controlling the race.Pirelli recommends the following numbers of laps are not exceeded on each compound: Medium = NO LIMIT suggested Soft = 22 laps Super Soft = 18 lapsOn this basis, the possible pit-stop strategies predicted by Pirelli are as follows:QUICKEST Two-stopper: 2 stints on soft (19 laps on new tyres) + 1 stint on medium of 33 laps Also possible (very close) Three-stopper: 2 stints on super soft (15 laps on new tyres) + 2 stints on soft of 20 and 21 lapsSECOND-QUICKEST Three-stopper: 1 stint on super soft (8 laps on used tyres) + 3 stint on soft of 21 lapsSLOWEST One-stopper: 1 stint on soft (22 laps on new tyres) + 1 stint on medium of 49 laps Different permutations of compound usage within each strategy are possible.With those strategies, and the one-stop mentioned above, in mind, here are the tyres each driver has left for the race. Note that Nico Rosberg chose to complete a second run in Q2 on the softs and therefore has two sets of used softs as opposed to Lewis Hamiltons one new and one used. replica jerseys china . 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SPIELBERG, Austria -- Nico Hulkenberg will start from the front row of the grid at Sundays Austrian Grand Prix after the stewards decided not to penalise him for setting a fastest first sector under yellow flags in Q1. However, both Jolyon Palmer and Rio Haryanto were served with three-place grid penalties for speeding under yellows.Hulkenberg was third fastest in qualifying behind the two Mercedes, but will move up to second place alongside Lewis Hamilton once Nico Rosbergs five-place grid penalty for a gearbox change is factored in. Hulkenberg had a stewards investigation hanging over him at the end of the session after he set a fastest first sector in Q1 under yellow flags for Carlos Sainzs stricken Toro Rosso. However, the stewards found that he had lifted enough under the caution area not to be penalized.Although the driver went green in the sector where the double yellow flags were displayed, the telemetry clearly demonstrated that he had decelerated on approaching the flag point and that his speed reduced in the yellow flag sector, the stewards statement said.Palmer was penalised three grid positions, however, for not lifting the throttle for the same incident. He was also given two penalty points on his superlicense.The telemetry clearly showed that the driver made no reduction in speed and was at full acceleration through the yellow flag area, the stewards said. Notwithstanding the fact the driver could see the disabled Car 55 on the side of the track, the regullations are clear that on display of double yellow flags a significant reduction in speed must be made.dddddddddddd This did not happen in this case.It is noted by the Stewards that there appears to be a lack of understanding of the requirement for a significant reduction in speed where double yellow flags are displayed and that drivers should not assume that what is in their field of vision is the only hazard to which the flags refer.Haryanto also received a three-place grid drop and two penalty points.The telemetry clearly showed that the driver made no reduction in speed and was at full acceleration through the yellow flag area. Notwithstanding the fact the driver could see the disabled Car 55 on the side of the track, the regulations are clear that on display of double yellow flags a significant reduction in speed must be made. This did not happen in this case.The Stewards record the fact that the driver was open and honest in his acknowledgement of the breach.It is noted by the Stewards that there appears to be a lack of understanding of the requirement for a significant reduction in speed where double yellow flags are displayed and that drivers should not assume that what is in their field of vision is the only hazard to which the flags refer.Finally, Felipe Nasr was also given a penalty and two penalty points for the same infringement. ' ' '