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PostSubject: Sebring 2013   Tue Jan 22, 2013 5:40 am

The very welcome news has just been released that Audi are set to race a pair of R18 e-tron quattros at the 12 Hours of Sebring with a 2012 spec car competing alongside the 2013 revised version of the car

"We’re in for a very emotional race weekend on which we’ll be taking the fans along on a journey into our past," says Head of Audi Motorsport Dr. Wolfgang Ullrich.

"Sebring is where Audi’s sports car era that has been so successful began. We expect that with two current hybrid models we’ll be battling for overall victory at the 12-hour race for the last time this year. At the same time, on the fringes of the race, the fans can look forward to seeing four other race cars and several race drivers who made history at Sebring with Audi."

In addition to a 2012-generation Audi R18 e-tron quattro, an updated version of the prototype will be on the grid in Florida. Marcel Fässler/Oliver Jarvis/Benoît Tréluyer and Lucas di Grassi/Tom Kristensen/Allan McNish will be driving the two hybrid race cars in the race. With six victories under his belt, Kristensen holds the record at this event.

In 13 runs at the sports car classic to date, Audi has clinched 22 podium positions including ten overall victories. Right on the debut, on March 20, 1999, three Audi drivers - Michele Alboreto/Dindo Capello/Stefan Johansson - were on the podium. Audi Sport Team Joest was the race team back then, as it is today.

As part of the program for the endurance race that has been held since 1952 Audi will be treating the fans to an exhibition in March reflecting the brand’s entire sports car era. An Audi R8 represents the successful period from 2000 to 2005 whereas the R10 TDI paved the way for diesel power from 2006 to 2008. The R15 TDI won there in 2009 on making its debut, and the winning car from last year - the R18 TDI - can be marvelled at as well.

Audi will also bring a number of former factory drivers who have been successful at Sebring to the race who will all be on hand to sign autographs for fans as well as for pictures and interviews.

That’s a nice way to bring down the curtain, for now at least, for the marque’s US fans.



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PostSubject: Re: Sebring 2013   Tue Jan 22, 2013 6:12 am

To that's very un welcome news. Audi coming in and basically dominating the biggest event of the calendar and buggering off. Perhaps a dp only class would be a good thing. By dp only I mean the dp and lmp2 class next year. As there won't be any p2's.
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PostSubject: Re: Sebring 2013   Thu Feb 14, 2013 10:17 pm

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PostSubject: Re: Sebring 2013   Fri Feb 15, 2013 7:51 am

That is good to hear - but we need more P2 entry's for more competition.

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PostSubject: Re: Sebring 2013   Fri Feb 15, 2013 10:06 am

Yes we do. But there being one team should make a second more likely.
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PostSubject: Re: Sebring 2013   Sat Feb 16, 2013 11:28 am

A very interesting piece about the new BMW Z4 GTE: http://auto-racing.speedtv.com/article/alms-inside-the-bmw-z4-gte/

What strikes me, is how much scaling back GTE regulations require compared to GT3 regulations. Not so much the electronics, but downforce and design changes.

On the road car side, there is no V8 Z4....until BMW make it a reality. There needs to be a last hurrah for the S65 motor - the last naturally aspirated, high-revving screamer there will probably be from BMW.


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PostSubject: Re: Sebring 2013   Sat Mar 09, 2013 4:32 pm

Motors tv showing Sebring race live.. apart from a 2 hour break ????????????????????
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PostSubject: Re: Sebring 2013   Sat Mar 09, 2013 10:55 pm

That is correct there is a two hour break.
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PostSubject: Re: Sebring 2013   Sun Mar 10, 2013 2:48 am

Motor bikes interfering - spam spam lol!

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PostSubject: Re: Sebring 2013   Tue Mar 12, 2013 8:45 am

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PostSubject: Re: Sebring 2013   Fri Mar 15, 2013 6:47 pm

1 1 2 P1 di Grassi/Kristensen/McNish 1:46.660 126.233 41 -.--- 44 Audi R18 e-tron quattro
2 2 1 P1 Fassler/Treluyer/Jarvis 1:46.686 126.202 43 0.026 44 Audi R18 e-tron quattro
3 3 6 P1 Graf/Luhr/Dumas 1:47.483 125.266 21 0.823 31 HPD ARX-03c
4 4 12 P1 Prost/Heidfeld/Jani 1:49.373 123.102 30 2.713 40 Lola B12/60
5 5 13 P1 Beche/Cheng/Belicchi 1:49.704 122.730 19 3.044 38 Lola B12/60
6 6 16 P1 Dyson/Smith/Leitzinger 1:50.457 121.894 18 3.797 21 Lola B12/60
7 1 551 P2 Tucker/Hunter-Reay/Pagenaud 1:52.138 120.066 23 5.478 34 HPD ARX-03b
8 2 552 P2 Tucker/Franchitti/Briscoe 1:52.735 119.431 25 6.075 34 HPD ARX-03b
9 3 01 P2 Sharp/Cosmo/Brabham 1:53.133 119.010 17 6.473 35 HPD ARX-03b
10 4 41 P2 Kimber-Smith/Zugel/Lux 1:53.188 118.953 18 6.528 36 Zytek Z11SN
11 5 02 P2 Brown/van Overbeek/Lazzaro 1:55.578 116.493 14 8.918 32 HPD ARX-03b
12 1 52 PC Cheng/Guasch/Ostella 1:55.662 116.408 24 9.002 40 ORECA FLM09
13 7 0 P1 Meyrick/Pla 1:55.674 116.396 18 9.014 20 DeltaWing LM12
14 2 81 PC Schultis/Simon/Kaffer 1:56.467 115.604 19 9.807 19 ORECA FLM09
15 3 05 PC Bennett/Braun/Wilkins 1:56.656 115.416 17 9.996 18 ORECA FLM09
16 4 9 PC Junqueira/Popow/Ende 1:56.941 115.135 35 10.281 35 ORECA FLM09
17 5 500 PC Nunez/Shears/Heinemeier Hansson 1:57.312 114.771 14 10.652 21 ORECA FLM09
18 6 8 PC Marcelli/Cumming/Johansson 1:57.747 114.347 6 11.087 25 ORECA FLM09
19 7 7 PC Drissi/Mitchell/Ducote 1:58.468 113.651 19 11.808 19 ORECA FLM09
20 1 4 GT Gavin/Milner/Westbrook 2:00.282 111.937 27 13.622 35 Chevrolet Corvette C6 ZR1
21 2 3 GT Magnussen/Garcia/Taylor 2:00.406 111.822 37 13.746 37 Chevrolet Corvette C6 ZR1
22 3 62 GT Bruni/Beretta/Malucelli 2:00.736 111.516 19 14.076 37 Ferrari F458 Italia
23 4 97 GT Turner/Mucke/Senna 2:00.757 111.497 38 14.097 38 Aston Martin Vantage V8
24 5 007 GT Dalla Lana/Johnson/Lamy 2:00.947 111.321 25 14.287 33 Aston Martin Vantage V8
25 6 56 GT Müller D./Hand/Edwards 2:01.576 110.746 30 14.916 35 BMW Z4 GTE
26 7 48 GT Miller/Holzer/Lietz 2:01.604 110.720 13 14.944 27 Porsche 911 GT3 RSR
27 8 17 GT Henzler/Sellers/Tandy 2:01.671 110.659 24 15.011 30 Porsche 911 GT3 RSR
28 9 55 GT Auberlen/Martin/Müller J. 2:01.747 110.590 11 15.087 28 BMW Z4 GTE
29 10 23 GT Sweedler/Bell/Keen 2:02.316 110.076 6 15.656 24 Ferrari F458 Italia
30 11 93 GT Bomarito/Kendall/Wittmer 2:03.003 109.461 11 16.343 17 SRT Viper GTS-R
31 12 91 GT Dalziel/Farnbacher/Goossens 2:03.200 109.286 6 16.540 12 SRT Viper GTS-R
32 1 45 GTC Canache, Jr./Pumpelly/Wong 2:06.376 106.539 17 19.716 25 Porsche 911 GT3 Cup
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PostSubject: Re: Sebring 2013   Tue Mar 19, 2013 6:41 pm

61st Mobil 1 Twelve Hours of Sebring

A Quick Look at What It Might Mean

With the dust just about settled following the Sebring 12 hours, I have found time for some data analysis. Although the race was the opening round of the 2013 American Le Mans Series, I have to confess that my personal interest was particularly on the performance of the two Audis that ran away from the rest of the field and dominated the race. Just like last year, only different.

I am interested (as I am sure a lot of people are) in what indications it will give us for the 2013 World Endurance Championship, and even more importantly, Le Mans.

First, let's recall some key numbers from Sebring 2012:

62 starters, 325 laps completed.
11 caution periods for 55 laps in total
Fastest race lap: Lotterer (Audi R18 TDI) - 1m 46.567s

Remember as well that the three Audi R18 TDIs were pretty much 2011 cars: following last year's 12 hour race, they were used for the back-to-back comparison tests with the R18 ultra and the R18 e-tron quattro that Audi would use for the rest of the year and then wheeled away.

Now compare that information with the same from Sebring 2013, when Audi was trying a different strategy, in that the two cars entered this year were both hybrid e-tron quattros, but one was in '2012-spec' and the other in '2013-spec'. The most obvious external difference was the rear wing, which on the new car was utilising the 'full-width' loophole first exploited by Toyota last year.

Sebring 2013:
42 starters, 364 laps completed.
4 caution periods for 20 laps in total
Fastest race lap: Kristensen (2013-spec Audi R18 e-tron quattro) - 1m 44.870s

At first sight, an improvement of 1.7 seconds.

No analysis from me would be complete though, without mention of average lap times. The most appropriate way to look at it seemed to me to be to look at the average of the best 50 and the best 100 laps from each car. This gives the following:

2012 - Audi R18 TDI:
#1 Audi average best 50 laps - 1m 48.720s
#1 Audi average best 100 laps - 1m 49.369s

#2 Audi average best 50 laps - 1m 48.802s
#2 Audi average best 100 laps - 1m 49.401s

#3 Audi average best 50 laps - 1m 49.203s
#3 Audi average best 100 laps - 1m 49.822s

2013 - Audi R18 e-tron quattro
#1 Audi (2012-spec) average best 50 laps - 1m 46.489s
#1 Audi (2012-spec) average best 100 laps - 1m 47.048s

#2 Audi (2013-spec) average best 50 laps - 1m 46.423s
#2 Audi (2013-spec) average best 100 laps - 1m 47.056s

It looks pretty clear that the new e-tron quattro is better than two seconds per lap quicker than the old R18 TDI. But there doesn't seem any discernable difference between the 2012 and 2013 specification cars, which is surprising.

This is where a look at the sector times is interesting. In the following table, I have taken the fastest 15 times through each sector, and worked out the percentage of the time that the number 1 car (the older spec) was quicker than the number 2 car. So, 100% means that the number 1 car had the quickest 15 times through the sector, 0% means that the number 2 car had the quickest 15 times. If the number 1 car had 10 out of the 15 quickest times, then that would show as 67%.



Sector From To Percentage Advantage to #1
1 T1 T2 100%
2 T2 T3 27%
3 T3 T4 40%
4 T4 T5 67%
5 T5 T6 47%
6 T6 T7 33%
7 T7 T8 100%
8 T8 T9 53%
9 T9 TA 0%
10 TA T1 47%



To make this meaningful, you need to know where each sector is and for this you need the circuit map:




I hope this is clear enough: in effect the old ("lower downforce") car is quicker from the start/finish line to the pit exit and through the speed trap at the end of the Hulman Straight. The new ("high downforce") car demonstrates its advantage out of the final turn onto the start/finish straight. It is interesting that the advantage does not show up through the final turn (turn 17), though, which makes me think that the new car may also have had a different (and more effective) hybrid system.

At Le Mans, of course, the cars will run in "low downforce" trim. Indeed, remember that Toyota did not use their revised bodywork until after the 24 hours. So I would expect the folk at Audi to create a 'best of both' solution - certainly for Le Mans, if not for Silverstone and Spa. If they do, will it then be a 'hybrid-hybrid'?











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