After a string of point-scoring finishes, and a front row start in the Principality twelve months ago, much was expected of Lotus Renault GP in qualifying for the 2011 Monaco Grand Prix, but it wasn't to be.

On a confusing day for the team, neither driver was able to unlock the potential of the R31, with Vitaly Petrov just missing out on the pole position shoot-out in eleventh place and Nick Heidfeld only 16th for the fifth round of the championship. It was the first time that neither driver had made it through to the final phase of knock-out qualifying, and technical director James Allison wasn't alone in scratching his head when it came to analysing the reasons why.

"We thought we would do particularly well here in Monaco but, so far, our performance has been decidedly lacklustre," he sighed, "At the last GP, we had qualified as close to the leaders as we have all year, so to come here and be this far off the pace is as unexpected as it is disappointing.

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"We have struggled to get the most out of the supersoft [tyres] all weekend, so I did have my suspicions that we would struggle for pace in qualifying. On the prime tyre, we performed more respectably, but even this was below the standard we would have expected."

With so many cars ahead of them on the grid, and with passing and pit-stops expected to be rarer than in recent races, Allison remains far from confident of a good result on Sunday afternoon.

"Without a good start it will be tremendously hard - this is not going to be a KERS, DRS, tyre, F1 2011 style 'overtakeathon'," he conceded, "Tomorrow will be a traditional Monaco race, where attrition and the barriers will make overtaking more likely than anything else.

"It is much harder for strategy to have a real impact at Monaco. Of course, it remains crucial to do the right thing in terms of when and how often to stop, but it is difficult to get past other cars unless mistakes are made. However, it is the case that our race pace is respectable, so we will be looking to salvage what we can from a disappointing weekend so far. We will need to make a flying start tomorrow and then hope for things to unfold favourably in front of us."

Petrov, who has been the team's most consistent qualifier this year, admitted that the R31 was some way off the pace he had expected from it.

"We should be comfortably in the top ten, so naturally starting eleventh on the grid is not particularly satisfying," the Russian confirmed, "We have found the supersoft tyres challenging this weekend and I only managed to take off a few tenths when I used them, so we need to look at why this has happened. We should really be a second quicker than we are, so we will look at the data this evening and see what needs to be improved to ensure we are performing better tomorrow - we are going to have to be very much on our game strategically come race time."

Team-mate Heidfeld confirmed that there had been no exceptional problems with the car but, despite enjoying have clear laps in qualifying, just wasn't as fast as he wanted to be.

"After Thursday's running, we knew we still had work to do, but I thought we would be able to make it into the top ten," the German confessed, "Unlike in Barcelona, there won't be much overtaking here because of the nature of the track, but we will be pushing hard. Maybe if we use KERS in an unconventional way, where the driver in front is not expecting it, there will be an opportunity, but it certainly won't be like the last race. Of course, anything can happen with safety cars and other cars not finishing, so it's important that we finish and push as hard as we possibly can."

As well as hoping for a full recovery for Petrov's former GP2 Series team-mate Sergio Perez, who suffered a big crash in qualifying, the Renault team will also be sending best wishes to one of its pit crew, who was injured during Saturday morning's final practice session. Although the incident was not serious, the crew member required stitches and will sit out the remainder of the weekend.