The 2004 IRL IndyCar Series season was dominated by two teams, Andretti Green Racing and Rahal Letterman Racing. While there was great parity in 2003 between Honda and Toyota powered teams, in 2004 Honda began to outshine Toyota bringing their teams Penske Racing and Chip Ganassi Racing down with it, leaving Scott Dixon winless and in 10th place in his attempt to defend his 2003 championship.
Season champion Tony Kanaan set a record by completing all 3,305 possible laps, the first IndyCar driver in modern history to do so.
This season was the last to feature an all-oval tracks schedule, which was part of the concept that led to the creation of the Indy Racing League. By 2005, road and street courses started to appear in the schedule, and by 2015, there are more races run in road/street courses than in oval tracks. Taken from http://en.wikipedia.org/wiki/2004_IndyCar_Series_season.

The 2004 Bridgestone Presents the Champ Car World Series Powered by Ford season was the inaugural season for the Champ Car World Series. It began on April 18, 2004 and ended on November 7 after 14 races. The Bridgestone Presents the Champ Car World Series Powered by Ford Drivers' Champion was Sébastien Bourdais. The Rookie of the Year was A. J. Allmendinger.
The open-wheel racing organization CART, Inc. had operated until 2003. After that year's season, the series declared bankruptcy and was liquidated in an Indianapolis courtroom in January 2004. Three team owners who had participated in the CART series, Gerald Forsythe, Kevin Kalkhoven, and Paul Gentilozzi, purchased the series' liquidated assets and resurrected it as the Champ Car World Series for the 2004 season.
Champ Car races were broadcast on Spike TV.^[1] Also, high-definition live broadcasts were on HDNet.

Race Results:
 

Date	League	Location	Cars	Winner	St.	Make/Model	Distance	Pole Speed	Cautions	Laps	Average race speed	LC	Time of Race
2/29/2004	IRL	Homestead	19	Sam Hornish, Jr.	7	D/T/F	300	217.388	5	45	151.094	15	1:57
3/21/2004	IRL	Phoenix	20	Tony Kanaan	2	D/H/F	200	174.779	3	26	127.981	4	1:33
4/17/2004	IRL	Motegi	22	Dan Wheldon	1	D/H/F	300	205.762	3	23	166.114	5	1:49
4/18/2004	CHAMP	Long Beach	18	Paul Tracy	3	Lola / Ford	159	102.808	1	5	91.785	3	1:44
5/23/2004	CHAMP	Monterrey	18	Sebastien Bourdais	1	Lola / Ford	151	102.474	6	17	86.544	9	1:45
5/30/2004	IRL	Indianapolis	33	Buddy Rice	1	G/H/F	450	222.024	8	56	138.518	17	3:14
6/5/2004	CHAMP	Milwaukee	18	Ryan Hunter-Reay	1	Lola / Ford	250	181.15	7	56	129.859	0	1:59
6/12/2004	IRL	Fort Worth	22	Tony Kanaan	3	D/H/F	300	209.609	5	37	153.965	14	1:53
6/20/2004	CHAMP	Portland	18	Sebastien Bourdais	1	Lola / Ford	185	119.678	2	8	104.923	4	1:45
6/26/2004	IRL	Richmond	22	Dan Wheldon	20	D/H/F	188	171.202	7	77	114.589	3	1:38
7/3/2004	CHAMP	Cleveland	18	Sebastien Bourdais	3	Lola / Ford	204	131.749	3	12	113.209	6	1:48
7/4/2004	IRL	Kansas	21	Buddy Rice	1	G/H/F	300	210.141	2	16	177.183	18	1:42
7/11/2004	CHAMP	Toronto	18	Sebastien Bourdais	1	Lola / Ford	147	107.893	7	27	83.749	3	1:45
7/17/2004	IRL	Nashville	22	Tony Kanaan	5	D/H/F	267	201.231	7	52	134.975	3	1:55
7/25/2004	IRL	Milwaukee	22	Dario Franchitti	7	D/H/F	225	169.338	5	39	128.272	8	1:46
7/25/2004	CHAMP	Vancouver	17	Paul Tracy	1	Lola / Ford	151	105.333	2	5	95.9	4	1:34
8/1/2004	IRL	Michigan	22	Buddy Rice	6	G/H/F	400	215.871	4	24	182.123	4	2:11
8/8/2004	CHAMP	Elkhart Lake	18	Alex Tagliani	13	Lola / Ford	194	141.42	5	14	110.903	6	1:45
8/15/2004	IRL	Kentucky	22	Adrian Fernandez	4	G/H/F	300	216.016	3	22	180.588	9	1:38
8/15/2004	CHAMP	Denver	18	Sebastien Bourdais	1	Lola / Ford	149	99.516	2	9	89.103	3	1:40
8/22/2004	IRL	Pikes Peak	22	Dario Franchitti	4	D/H/F	225		3	26	142.182	7	1:34
8/29/2004	IRL	Nazareth	22	Dan Wheldon	8	D/H/F	225	167.396	4	42	118.874	5	1:46
8/29/2004	CHAMP	Montreal	18	Bruno Junqueira	4	Lola / Ford	187	122.062	1	4	113.049	5	1:39
9/12/2004	IRL	Chicago	22	Adrian Fernandez	10	G/H/F	300	214.759	6	58	140.825	23	2:09
9/12/2004	CHAMP	Laguna Seca	18	Patrick Carpentier	2	Lola / Ford	177	116.163	3	11	100.217	5	1:45
9/25/2004	CHAMP	Las Vegas	18	Sebastien Bourdais	3	Lola / Ford	249	206.186	4	23	167.832	13	1:29
10/3/2004	IRL	Fontana	22	Adrian Fernandez	4	G/H/F	400	217.479	5	23	178.826	23	2:14
10/17/2004	IRL	Fort Worth	21	Helio Castroneves	1	D/T/F	300	215.996	4	35	159.397	13	1:49
10/24/2004	CHAMP	Queensland	19	Bruno Junqueira	3	Lola / Ford	159	107.551	5	15	93.556	3	1:46
11/7/2004	CHAMP	Mexico City	19	Sebastien Bourdais	1	Lola / Ford	176	116.733	2	3	106.327	0	1:39