Driver days compares the number of days each driver, and team, has driven during winter testing, with a driver day being counted for each driver that tests for a team on a day of testing - multiple drivers for one team on a day of testing mean multiple driver days. A total of 39 drivers have driven for ten teams in these tests during November and December, for a total of 179 driver days of testing, about a 10 percent increase over last year. Every team has taken part in the testing, while of those drivers confirmed to drive in 2004, Ferrari's Michael Schumacher (just like last year), McLaren's Kimi Raikkonen and Minardi's Zsolt Baumgartner have not taken to the track.

Of the drivers that have taken part, Luciano Burti leads the way with 11 days, with the three drivers of Franck Montagny, Takuma Sato and Alex Wurz having tested for 10 days. From the teams' perspective, Williams-BMW lead the way, just one ahead of Ferrari, with BAR-Honda, Renault and Toyota next with Jaguar-Cosworth and McLaren-Mercedes just behind.

Driver Driver Days Marc Gene 11 Franck Montagny 10 Takuma Sato 10 Alex Wurz 10 Luca Badoer 9 Luciano Burti 9 Christian Klien 9 Felipe Massa 9 Mark Webber 9 Jenson Button 8 Ricardo Zonta 8 Ryan Briscoe 7 David Coulthard 6 Juan Pablo Montoya 6 Ralf Schumacher 6 Jose Maria Lopez 4 Pedro de la Rosa 4 Fernando Alonso 3 Rubens Barrichello 3 Giancarlo Fisichella 3 Nick Heidfeld 3 Heikki Kovalainen 3 Cristiano da Matta 3 Olivier Panis 3 Jarno Trulli 3 Anthony Davidson 2 Jaroslav Janis 2 Fabrizio del Monte 2 Nelsinho Piquet 2 Nico Rosberg 2 Bjorn Wirdheim 2 Townsend Bell 1 Gianmaria Bruni 1 Ralph Firman 1 Neel Jani 1 Narain Karthikeyan 1 Satoshi Motoyama 1 Norbert Siedler 1 Ho-Pin Tung 1

Team Driver Days Williams-BMW 28 Ferrari 27 BAR-Honda 21 Renault 21 Toyota 21 Jaguar-Cosworth 20 McLaren-Mercedes 20 Minardi-Cosworth 8 Sauber-Petronas 7 Jordan-Ford 6

The driver totals compared the total number of laps completed by each driver during testing, with the total number of laps broken down circuit by circuit. A total of 11423 laps were completed during testing in November and December, over 25 percent more than last year. Jaguar's rookie Christian Klien leads the way with 775 laps, just two laps ahead of Renault tester and 2003 Superfund Nissan champ Franck Montagny with faithful Williams tester Marc Gene just five laps further back. The rest of the order is fairly evenly spread out, while at the bottom of the table is a group that includes drivers that the teams are evaluating for possible further use as test drivers.

By default, the table is sorted by total laps in descending order.

Driver	Total Laps	Barcelona	Fiorano	Jerez	Paul Ricard	Valencia	Vallelunga
Christian Klien	775	269	0	336	0	170	0
Franck Montagny	773	277	0	136	0	360	0
Marc Gene	768	0	0	503	0	265	0
Alex Wurz	698	246	0	119	0	333	0
Mark Webber	660	246	0	194	0	220	0
Takuma Sato	651	220	0	431	0	0	0
Luca Badoer	637	214	0	423	0	0	0
Ryan Briscoe	562	225	0	0	0	337	0
Ricardo Zonta	530	192	0	101	237	0	0
Felipe Massa	497	224	0	273	0	0	0
Jenson Button	443	176	0	267	0	0	0
Ralf Schumacher	431	0	0	243	0	188	0
Juan Pablo Montoya	376	0	0	184	0	192	0
Luciano Burti	361	111	187	63	0	0	0
David Coulthard	340	183	0	0	0	157	0
Jarno Trulli	264	0	0	0	0	264	0
Giancarlo Fisichella	245	245	0	0	0	0	0
Pedro de la Rosa	235	0	0	235	0	0	0
Fernando Alonso	221	0	0	221	0	0	0
Jose Maria Lopez	186	73	0	0	0	0	113
Olivier Panis	153	0	0	153	0	0	0
Heikki Kovalainen	147	66	0	0	0	0	81
Gianmaria Bruni	130	0	0	0	0	0	130
Cristiano da Matta	129	0	0	129	0	0	0
Justin Wilson	124	0	0	0	0	124	0
Rubens Barrichello	120	0	0	120	0	0	0
Nick Heidfeld	120	0	0	120	0	0	0
Anthony Davidson	116	0	0	116	0	0	0
Nelsinho Piquet	110	0	0	110	0	0	0
Jaroslav Janis	96	0	0	96	0	0	0
Neel Jani	94	0	0	94	0	0	0
Bjorn Wirdheim	79	0	0	79	0	0	0
Nico Rosberg	72	0	0	72	0	0	0
Townsend Bell	63	0	0	0	0	63	0
Satoshi Motoyama	49	0	0	49	0	0	0
Norbert Siedler	47	0	0	0	0	0	47
Ralph Firman	46	0	0	46	0	0	0
Ho-Pin Tung	42	0	0	42	0	0	0
Fabrizio del Monte	33	0	0	0	0	0	33
Narain Karthikeyan	0	0	0	0	0	0	0

The driver totals compared the total number of laps completed by each driver during testing, with the total number of laps broken down circuit by circuit. Again, 11423 laps have been completed during the testing period. On top, just like last year, were Williams, with Jaguar a clear second. Next up and close together were Ferrari and Renault, followed by Toyota, with BAR-Honda and McLaren-Mercedes next separated by just a few laps. The remaining three teams put in a comparatively token effort, completing less laps between them than any of the seven teams above them completed individually.

By default, the table is sorted by total laps in descending order.

Team	Total Laps	Barcelona	Fiorano	Jerez	Paul Ricard	Valencia	Vallelunga
Williams-BMW	1799	0	0	1154	0	645	0
Jaguar-Cosworth	1622	515	0	530	0	577	0
Ferrari	1472	549	187	736	0	0	0
Renault	1446	416	0	406	0	624	0
Toyota	1374	417	0	383	237	337	0
BAR-Honda	1289	396	0	893	0	0	0
McLaren-Mercedes	1273	429	0	354	0	490	0
Sauber-Petronas	482	245	0	237	0	0	0
Minardi-Cosworth	404	0	0	0	0	0	404
Jordan-Ford	262	0	0	262	0	0	0

The distance totals compare the total distance completed by drivers and teams during testing. A total of 49441.115 km has been covered during testing, the equivalent of more than 160 Grand Prix distances! These two tables follow a similar pattern to the previous tables, Christian Klien and Williams again heading the tables.

By default, the tables are sorted by total distance in descending order.

Driver km Christian Klien 3441.028 Franck Montagny 3354.218 Marc Gene 3288.609 Alex Wurz 3024.177 Takuma Sato 2949.068 Mark Webber 2903.712 Luca Badoer 2885.264 Ryan Briscoe 2413.935 Felipe Massa 2268.364 Ricardo Zonta 2258.288 Jenson Button 2014.756 Ralf Schumacher 1828.944 Juan Pablo Montoya 1583.712 David Coulthard 1494.375 Luciano Burti 1360.506 Giancarlo Fisichella 1158.850 Jarno Trulli 1057.320 Pedro de la Rosa 1040.580 Fernando Alonso 978.588 Jose Maria Lopez 709.376 Olivier Panis 677.484 Heikki Kovalainen 573.162 Cristiano da Matta 571.212 Rubens Barrichello 531.360 Nick Heidfeld 531.360 Anthony Davidson 513.648 Justin Wilson 496.620 Nelsinho Piquet 487.080 Jaroslav Janis 425.088 Gianmaria Bruni 418.860 Neel Jani 416.232 Bjorn Wirdheim 349.812 Nico Rosberg 318.816 Townsend Bell 252.315 Satoshi Motoyama 216.972 Ralph Firman 203.688 Ho-Pin Tung 185.976 Norbert Siedler 151.434 Fabrizio del Monte 106.326 Narain Karthikeyan 0.000

Team km Williams-BMW 7693.137 Jaguar-Cosworth 7093.675 Ferrari 6412.290 Renault 6264.568 Toyota 5920.919 BAR-Honda 5827.284 McLaren-Mercedes 5559.132 Sauber-Petronas 2208.286 Minardi-Cosworth 1301.688 Jordan-Ford 1160.136

The averages compare the average distance completed and average laps completed by the drivers and teams. A shake up in the order occurs in the drivers' listings, with Gianmaria Bruni and Neel Jani closely matched at the top, both drivers only completing one day of testing. Next up are Giancarlo Fisichella and Christian Klien, Fisichella completing three days compared to Klien's nine. In the teams' battle, Jaguar-Cosworth lead Sauber-Petronas, followed by Renault, ahead of a tightly bunched Toyota, McLaren-Mercedes, BAR-Honda and Williams-BMW.

This table is listed in alphabetical order (drivers by surname).

Driver km Laps Fernando Alonso 326.196 73.667 Luca Badoer 320.585 70.778 Rubens Barrichello 177.120 40.000 Townsend Bell 252.315 63.000 Ryan Briscoe 344.848 80.286 Gianmaria Bruni 418.860 130.000 Luciano Burti 151.167 40.111 Jenson Button 251.845 55.375 David Coulthard 249.063 56.667 Anthony Davidson 256.824 58.000 Ralph Firman 203.688 46.000 Giancarlo Fisichella 386.283 81.667 Marc Gene 298.964 69.818 Nick Heidfeld 177.120 40.000 Neel Jani 416.232 94.000 Jaroslav Janis 212.544 48.000 Narain Karthikeyan 0.000 0.000 Christian Klien 382.336 86.111 Heikki Kovalainen 191.054 49.000 Jose Maria Lopez 177.344 46.500 Felipe Massa 252.040 55.222 Cristiano da Matta 190.404 43.000 Franck Montagny 335.422 77.300 Fabrizio del Monte 53.163 16.500 Juan Pablo Montoya 263.952 62.667 Satoshi Motoyama 216.972 49.000 Olivier Panis 225.828 51.000 Nelsinho Piquet 243.540 55.000 Pedro de la Rosa 260.145 58.750 Nico Rosberg 159.408 36.000 Takuma Sato 294.907 65.100 Ralf Schumacher 304.824 71.833 Norbert Siedler 151.434 47.000 Jarno Trulli 352.440 88.000 Ho-Pin Tung 185.976 42.000 Mark Webber 322.635 73.333 Bjorn Wirdheim 174.906 39.500 Alex Wurz 302.418 69.800 Ricardo Zonta 282.286 66.250

Team km Laps BAR-Honda 277.490 61.381 Ferrari 237.492 54.519 Jaguar-Cosworth 354.684 81.100 Jordan-Ford 193.356 43.667 McLaren-Mercedes 277.957 63.650 Minardi-Cosworth 162.711 50.500 Renault 298.313 68.857 Sauber-Petronas 315.469 68.857 Toyota 281.949 65.429 Williams-BMW 274.755 64.250

Finally, the battle of the two tyre companies. With BAR switching to Michelin, Bridgestone have only four teams at their disposal while Michelin has six teams out there running. On top of this, Ferrari is the only Bridgestone team running at the top level, with Bridgestone also having the two lowest ranked teams on its books. This table reflects this, with Michelin's totals around four times Bridgestone's totals in each of the categories of total distance, total laps, and driver days. When looking at the averages, Bridgestone runners are more competitive, within around fifteen percent of the average running per driver day compared to Michelin.

This table is also listed in alphabetical order.

Manufacturer	km	Laps	Driver Days	Laps/ Driver Day	km/ Driver Day
Bridgestone	9780.712	2216	40	244.518	55.40
Michelin	39660.403	9207	139	285.327	66.24