“I thought Laguna Seca was a tough track to learn, and then I came here.” Bradley Smith’s verdict on the Circuit of the Americas at Austin, Texas, after six laps on the scooter around the track.

Smith’s words sum up the general feeling about the newest addition to the MotoGP calendar, mind-boggling sequence of decreasing and increasing radius turns, with blind entrances, complex combinations and a few hard-braking hairpins with tough entrance points.

Even the long back straight undulates, the huge, slightly bowed, 1200 meter length of tarmac rising and falling, leaving you wondering where you are along it.

The setting is beautiful, in the rolling low hills to the east of Austin, just beyond the airport, and the facilities are quite simply overwhelming: modern, well-equipped, brightly lit, attractively designed. Indeed, both the factory and Tech 3 Yamaha teams are delighted with the facility: after a battery fire at 1am, it was only the circuit’s outstanding sprinkler system and alert response by the fire service which prevented the fire spreading out of control, destroying maybe eight or twelve MotoGP machines, and causing upwards of $50 million of damage.

Asphalt & Rubber is coming to you from the Grand Prix of the Americas this week, and things are already off to an interesting start. With a fire breaking out in the Monster Yamaha Tech 3 garage during the night, the gear for the satellite Yamaha squad was flooded by the Circuit of the America’s fire suppression system, which also affected the garages for Yamaha Racing, LCR Honda, and Cardion AB.

Yamaha Racing Boss Lin Jarvis explained that while the small fire was quickly put out by COTA’s sprinklers, the team lost one of two servers and several computers to the blaze before it was extinguished. It is not anticipated that the fire will have any affect on Sunday’s race, though it could pose a problem for the teams, since they have a quick turnaround for the Jerez round.

Currently, the cause of the fire is presumed to be the lithium battery to Monster Yamaha Tech 3′s electric starter for the GP motorcycles, making this incident another eyebrow raising episode in the handling of high-tech battery packs, which have different tolerances and operating procedures than conventional battery pack types.

While certainly a setback to the start of the race weekend, the teams involved dodged a serious bullet by having the fire occur while MotoGP is at COTA, since the Texan track has a sophisticated fire prevention system in place.

So the three days of testing at Austin are over, and what did we learn? That Marc Marquez is something special? We knew that, though we didn’t perhaps realize just how special. That Yamaha really needs to find more acceleration? This, too, was known, but becoming clearer every time the M1 goes up against the Honda RC213V on track. That Valentino Rossi’s return does not equate to an automatic 8th MotoGP title? We suspected as much.

The first thing that became obvious is that the Austin circuit itself is pretty decent. Valentino Rossi described it as “a typical Tilke track, with corners that remind you of Shanghai and Turkey.” Unsurprising, given that Herman Tilke, who also designed Shanghai, Istanbul, and many other race tracks around the world, was responsible for designing the track.

The input from Kevin Schwantz was helpful, though, making the track more like Istanbul than Shanghai. The circuit has a couple of highly technical sections, where you go in blind and need to have memorized which way the track goes. It is wide, giving opportunities for overtaking and braking, and has a couple of the fast, fast sweepers which motorcycle racers love.

It also has a couple of tight corners, leaving the bike in a low gear with a lot of acceleration to do. This, it became apparent, favors the Hondas, the RC213V strongest off the bottom, and capable of pulling a gap. Acceleration issues will be a problem for Yamaha this year, unless Masahiko Nakajima and his fellow engineers can find some extra grunt out of the corners.

The situation was similar in 2012, but Yamaha was helped by the problems the Hondas had with chatter. So far, the Repsol Honda men have remained silent on the issue, meaning the worst of it is over. Yamaha have their work cut out, and Jorge Lorenzo’s second title defense could be a little too reminiscent of his previous one in 2011.