Some 14 years after his father's last race appearance in the top flight, Kevin Magnussen topped the times on his debut with the McLaren team at Yas Marina.

The Dane, who graduated from F3 to the World Series by Renault this season, spent the morning at the wheel of the Woking team's MP4-27, combining acclimatisation to the extra power of an F1 machine with gradual set-up changes as he fine-tuned the car to his driving style. He eventually completed 40 laps, with a best time of 1min 42.651secs that lasted through the afternoon session and kept him in top spot.

Regular McLaren development pilot Gary Paffett took over for the afternoon, working on a more aggressive programme that focused on a range of aerodynamic and suspension developments under consideration for both the final two races of 2012 and next year MP4-28. The Briton completed 44 laps, but was almost a second slower at 1min 43.407secs - largely because his workload required a consistent baseline and prevented the use of DRS.

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Splitting the two McLaren drivers at the end of the day was Red Bull prot?g? Ant?nio F?lix da Costa, who split his allotted time between mechanical work in the morning and aero-mapping during the afternoon, covering 79 laps in the process.

"This was my first time driving an RB8 at a proper test, with proper tyres on a real circuit, and... wow!" enthused the Portuguese ace, who finished higher than Magnussen in the WSbR standings, "I was perhaps a little anxious beforehand, but ultimately the pedals and the steering wheel are in the usual places.

"There's a lot to learn, particularly with the buttons on the steering wheel, and it took one or two runs to get completely comfortable with all of that - but I think we had a good day."

WSbR champion Robin Frijns, who takes over from da Costa on the third and final day, got his session underway with Sauber, clocking the fourth-fastest time of the session, which was run entirely in daylight, unlike Sunday's grand prix.

The 21-year old Dutchman was getting his first taste of an F1 car on a proper race circuit, having previously only experienced a demonstration run, but covered 78 laps - roughly the equivalent to one-and-a-half grand prix distances - without incident, despite feeling the physical effects.

"Gosh this was hard work!" Frijns exclaimed, "Not in the beginning but then, suddenly, I felt it, especially from the brakes. I am really tired now and know I have to go and exercise more!

"In the morning, we started with installation laps, so that I could get used to the car and the steering wheel, which isn't that easy. In the afternoon, I found it hard to understand the tyre compounds. I had only driven on Michelin tyres before and, with the Pirelli medium and soft compounds, it was difficult for me after only one lap. I had the feeling that the more careful I handled them the worse it became. There is obviously a lot to learn."

Despite the youngster's reaction, head of track engineering Giampaolo Dall'Ara said that Sauber had been impressed with his performance, despite not being in position to post a competitive lap time.

"We had a good day with Robin," he confirmed, "He did fine - physically, he coped well and also, for his age, gave us good feedback. The mileage is a lot and the lap time is also good.

"We started with hard tyres and did some aero work in the morning before actually working on his lap time. Towards the end of the day, we gave him an idea of different tyre compounds and went with a set of medium and a set of soft, but we never sent him out with a qualifying fuel level."

Magnussen was the only 'son of' in action on day one, as Nicolas Prost enjoyed the session at the wheel of Sunday's race-winning Lotus just a couple of weeks after father Alain had sampled a Red Bull car at Paul Ricard.

Prost Jr completed a full engineering and aerodynamic programme during a trouble-free day, gaining valuable data from pressure logging and aero testing in the morning, and a rear drum configuration after lunch. Running only hard compound Pirellis, the Frenchman was fifth fastest overall, on 1min 44.194secs.

"Today was my first real experience of an F1 car," he reported, "I had driven the R30 before, however it's now two years old and uses different tyres so it's quite different to my experience today. I'm obviously very happy and am impressed by the car; it's a massive step up even from the R30.

"For me, it was like a real test driver's day and we trialled a lot of parts. We only worked on the hard tyres, so were obviously not looking for pace, but we have been analysing the data and I have been comparing myself with Kimi [Raikkonen] and Romain [Grosjean]'s telemetry. Obviously, I'm missing a bit in some corners, but others are quite good. For my first day, I think it's very positive and I did the job the team asked of me, so it's been a very good day."

GP2 Series runner-up Luiz Razia was at the wheel of Toro Rosso's lone STR7, which had last raced at the Italian Grand Prix back in September.

"I enjoyed my first experience working with Toro Rosso on a track I know well," the Brazilian noted, "In the morning, the team had various test items it wanted to work through and, in the afternoon, we looked a bit more at establishing a base line on the car.

"As far as the tyres are concerned, I found it relatively straightforward as they seemed quite similar to those supplied by Pirelli in GP2. As for all the buttons on the steering wheel, I had some time before driving the car to get used to them, so I soon got the hang of it. Overall, it was a good day as the car ran trouble free and I was able to do a lot of laps."

Giedo van der Garde returned to the cockpit of Caterham's CT-01, and enjoyed a more productive time than he had last time out in Friday's opening free practice session at Yas Marina.

"I'm pleased with how today went," the Dutchman commented, "We were mainly working on aero performance, running sensors and different mechanical
configurations on the car in the morning and afternoon sessions and, to get the most out of them I had to drive consistently, carefully and not go for outright speed.

"I think the team's happy with what I've done today and, physically, I feel great after running a good number of laps. After my FP1 session here in Abu Dhabi was cut short, it was good to get some really decent time on track and the key thing for me is to keep developing my relationship with the team. There's still a few tweaks we could make to the set-up to suit my driving style a bit more, but we have tomorrow to work on a few more options, as well as continuing to test parts and aero programmes."

Joining van der Garde on track on Wednesday, Paffett will conclude his running by assessing a number of larger mechanical changes during the morning, before handing over to fellow development driver Oliver Turvey in the afternoon.

Da Costa will also be back in Red Bull, while 2013 race seat candidate Esteban Guti?rrez takes over from Frijns at Sauber. Johnny Cecotto Jr likewise gets his first outing with Toro Rosso, before Razia returns on Thursday.