Adrian Sutil has had a seat fitting with the Silverstone based squad ahead of testing in Barcelona, and has emerged as one of the prime contenders for the second race seat alongside Paul Di Resta.

Pirelli have taken a very aggressive approach for the first few flyaway races and some of the tyre choices has really surprised the F1 Community. Most notable of all being the supersoft tyre compound for the first race in Australia.

Last year even with soft compound tyres some teams were struggling with excessive degradation so it will be a real icing on the cake with the supersoft tyres as the race is likely to see a lot of pit-stops.

To add to all this, Pirelli have opted to bring Medium compound tyres as the Prime tyre for the Australian Grand Prix. So, there is a complete step between the options i.e the supersoft and the prime i.e Medium compound.

“The full step in the compound choice should ensure a performance gap between the cars that allows strategy to come into play,” added Pirelli in a media statement.

Sauber introduced a new design concept this year by introducing very slim sidepods. The new concept is likely to provide more aerodynamic gains as the drag due to bulky sidepods will be reduced but there had been questions of whether the slim sidepods could house radiators that would be adequate for cooling.

But, despite all the speculation Peter Sauber has revealed that everything on C32 worked fine during the Jerez test and even said that they didn't have any problem with engine and KERS cooling.

Nico Rosberg has come out in public and has said that he is impressed with the new Ferrari F138. 

According to Rosberg, Massa wan't at home with the car during the first two days but on third day at Jerez Ferrari managed to find solutions to their problem and Massa then posted the quickest laptime.

Lewis Hamilton  has said that MGP-W04 is right where he had expected it to be and has thanked the Engineers at Brackley for the awesome work they have done over the winter.

Lewis Hamilton's first day of Mercedes running was cut short by a rear brake failure caused due to loss of hydraulic pressure. The Briton got his first proper run on the fourth day of Jerez test where he completed over two race distances.

Here's what he had to say after Jerez test:

"We have some work to do but it doesn't feel like it was a disaster," he said. "I feel like it's a good platform, a good foundation to work from.

"Definitely we are going to keep asking for downforce, and hope the guys continue to do a great job at the factory."

Former Ferrari designer Rory Byrne has returned to Ferrari and is currently assisting with the development of  Ferrari's 2014 challenger.

The South African designed all of Michael Schumacher's championship winning cars at Benetton and Ferrari before retiring at the end of 2006.

A Ferrari spokesman said that Rory byrne is working on the new Enzo road car project but is also providing "operational support" on the 2014 F1 project.

Narain Karthikeyan has emerged as a surprise contender for second race seat alongside Paul Di Resta for the 2013 F1 Season. 

The news was reported by Deccan Chronicle and it is said that the increase in sponsorship backing by Tata has been the main reason why Force India are considering him.



Bianchi told Autosport on Friday: “Even if the plan was to stay a third driver for two years, now the plan has changed and I’m ready.”

Kimi Raikkonen topped the final day of Jerez test by putting his new Lotus E21 on top of the timesheets. The Finn set his best time with soft tyre on a short run during the Afternoon running.

Due to delay caused by track repairs, the session was extended for 30 minutes and from the moment Kimi exited the pits he was on it and posted some very quick laptimes .

Force India reserve Jules Bianchi was second fastest in the VJM-06. Bianchi has been linked with second Force India seat and looked impressive in the new Force India.

Reigning world Champion Sebastian Vettel was third fastest on a day where he focused mainly on long runs with hard and medium compound tyres.

Lewis Hamilton got his first proper day and managed to complete 145 laps. Nico Rosberg completed around 148 laps on third day so all in all Mercedes recovered well from their earlier reliability issues.

Ferrari's new Reserve driver Pedro De La Rosa was behind the wheel of F138 for the fourth day of Jerez testing. But, unfortunately for the spaniard F138's Gearbox broke on his second installation lap and so the Veteran could only complete 50 laps after Ferrari mechanics repaired the fault.

Here are the full results from fourth day of Jerez Testing:

P	Driver	Car	Times	Gap	Laps
1	K.Raikkonen	Lotus E21	1.18.148		83
2	J.Bianchi	Force India VJM06	1.18.175	+0.027	56
3	S.Vettel	Red Bull RB9	1.18.565	+0.417	96
4	E.Gutierrez	Sauber C32	1.18.669	+0.521	142
5	J-E.Vergne	Toro Rosso STR8	1.18.760	+0.612	92
6	L.Hamilton	Mercedes W04	1.18.905	+0.757	145
7	S.Perez	McLaren MP4-28	1.18.944	+0.796	98
8	V.Bottas	Williams FW34	1.19.851	+1.703	92
9	P.De La Rosa	Ferrari F138	1.20.316	+2.168	51
10	C.Pic	Caterham CT03	1.21.105	+2.957	109
11	L.Razia	Marussia MR02	1.21.226	+3.078	82
12	P.Di Resta	Force India VJM06	1.23.435	+5.287	49

The new Ferrari F138 caught fire on the second installation lap during the fourth day of Jerez testing. Pedro De La Rosa , Ferrari reserve driver was supposed to be at the wheel for the entire day but the fire means that the Spaniard wouldn't get any tracktime in new F138.