I can hardly believe we are already more than halfway through the Formula 1 season. It has gone by so quickly. Normally I look at the performances of the drivers at the halfway point. But this year I haven’t felt as able to keep on top of everything, so instead I will look at the constructors.

12. Hispania

Of the three new teams, Hispania have probably had the hardest job after taking over the Campos entry at the eleventh hour after it hit severe financial difficulties. Although their car is probably the slowest, it does not have the poorest reliability record, and as such the team currently sits ahead of Virgin in the Constructors’ Championship. Hispania have also acted quickly to sort out the problems with the Dallara chassis, and have hired big name designer Geoff Willis to sort out the mess for next season.

However, recent musical chairs involving their drivers have left a sour taste in the mouth. Bruno Senna and Karun Chandhok are both well-liked drivers who have done an admirable job in hugely difficult circumstances, even though you might say neither is a potential future World Champion. Sakon Yamamoto is not liked very much, and is not terribly good as demonstrated in his previous two stints in F1. But the team appear to be desperate to get him into the car nevertheless. The process has been handled appallingly.

11. Virgin

On the track, Virgin is probably the least exciting of the new teams. Their reliability record is poor, and the speed is not particularly impressive, even if they occasionally manage to beat a Lotus every once in a while.

On the plus side, their controversial approach to design the car without the use of a wind tunnel has proved the doubters wrong, as the car has not been disastrously off the pace.

Both drivers have shown flashes of brilliance. But you sense that Timo Glock in particular would be capable of more if only he had decent equipment.

10. Lotus

Lotus have very quickly established themselves as the fastest of the new teams. But it has not all been plain sailing for them, and their reliability record needs improvement. I also wonder how much better they would be doing if they had two better race drivers than Jarno Trulli and Heikki Kovalainen, although the experienced line-up is probably ideal in a development sense.

The next target for Lotus is to start beating the established teams on a regular basis. But with Williams and Sauber both having made significant improvements recently, it is difficult to see how they can make much headway beyond battling with Toro Rosso. Whatever, next year will be important for Lotus — anything below ninth in the 2011 Constructors’ Championship would surely be a disappointment. But that just shows how far they have come already.

9. Williams

Although they have begun to make strides up the grid in the past few races, the fact remains that this has been another disastrous year for Williams. They have spent much of the season battling at the wrong end of the grid, counting Sauber and Toro Rosso among their rivals.

Perhaps the most worrying thing is that when you hear the likes of Patrick Head and Sam Michael try to explain the team’s performance over the past few years, they seem to be at a loss, except for vaguely talking about money being an issue. Williams lack answers.

Rubens Barrichello has been doing more or less the sort of job you would expect him to do. Meanwhile, promising rookie Nico Hülkenberg has not shown as much promise as you might have hoped. This has been coupled with a heavy dose of bad luck. I hope the second half of the season is better for Hülkenberg, of whom I am a fan.

8. Toro Rosso

I am finding it difficult to draw any firm conclusions about Toro Rosso yet. They have had some very poor showings indeed. But on the plus side, you must remember that this is their first year as a ‘proper’ constructor, designing their own chassis. On this basis, this season must be regarded as a success, even if they have not always been as quick as they may have liked.

Both Jaime Alguersuari and Sébastien Buemi are continuing to improve. Alguersuari has shown some real flashes of brilliance, and has impressed me a lot this season — particularly in a couple of battles with Michael Schumacher!

But with a more anonymous season, Buemi has been keeping his nose clean and has picked up the majority of the team’s points haul so far. That is mainly due to his assured performance at Canada, where he did well standing his ground as he briefly led the race as the pitstop phase was shaking itself out.

7. Sauber

After a promising winter testing season, the start of the actual season itself was deeply embarrassing for Sauber as they totally failed to convert pre-season promise into real race results. The car was not only frightfully slow, but it was also horrendously unreliable, making Sauber easily the worst of the established teams.

A question mark also hung over the choice of drivers, probably the riskiest on the grid. The decision to opt for Pedro de la Rosa, who had not raced since 2006, was bizarre — and I am a fan of de la Rosa! Meanwhile, Kamui Kobayashi was a man whose entire reputation was built on two races in odd circumstances.

The good news is that Sauber have turned the corner. de la Rosa is not making a fool of himself, and only needs more luck now in order to start scoring points. Meanwhile, Kobayashi looks set to become a points-scoring regular now. His performance in Valencia was absolutely superb, and he backed this up with another solid performance at Silverstone.

Sauber have also acted quickly to improve the car, making the decision to hire James Key early on as the car’s deficiencies became clear. The improvements he has made since joining the team can be seen vividly in the results.