Goal Attacks
This is from my Midnight Club: Los Angeles walkthrough.You can complete all of the races if you not have beaten the story. However, I recommend playing the story first so you get some practice with each track. Each Goal Attack has four pieces of criteria:
Win the race
Finish the race with less than 25% damage
Beat the time limit
Achieve all goals in the same raceThere are a total of 26 races.
To access this mode, follow these steps:
Press

Press

Scroll down to the second option,
Goal Attack and press

The races are split in to 3 sub-menus:
Ordered Race, Circuit Race and Landmark Race.
The best vehicle to use is a fully tuned
Ninja. Use the weight transfer to help when turning corners. It can be tricky to master this vehicle but once you do, this should be a breeze. With the Ordered and Circuit races, you should need no help. If you have beaten the game, they will be a stroll in the park 99%.
Ordered RacesBaldwin Crenshaw Run
Campus Orientation
Crenshaw and Back
Crenshaw and Hollywood
Out of the River
Pacific BLVD. Start
SC Touring Time
Slauson Bounce
South Central Exit
South Central Tour
Southeast Run
Under the 10
West Adams Match
Circuit Races10 and 405 is 110
Figueroa and Vermont
Huntington Drifts
Round Baldwin
South Central Speedway
Track Circuit
West Adams Loop
Landmark RacesI am unable to make a map as there seems to be no image for the DLC map online. I tried to take a photo but it is too confusing and not clear enough. I will do my best to explain it. They are not that hard and you have quite a bit of time. If you zoom in on your in game map, you can see the street names (press

to activate the map mode).
UPDATE:
DaChiefOfOwnage has been kind enough to contribute some videos, so kudos to him.
Downtown to Randy's:>From your starting point, head straight until you can turn left on to the 110 Freeway. >Follow the freeway around to the 405 Freeway.
>When you approach the end, take the left road off the freeway and then turn right on to La Clenega Ave.'s bridge.
Hills to Auditorium:>Immediatly turn left. Follow this road and turn left at the corner of Franklin Ave. and Ventura Blvd.
>You are now on Wilcox Ave. Keep going straight and turn right at the T junction, on to Pico Blvd.
Laurel Canyon to Florence:>Head straight into the Hills. When you exit the Hills, take the right exit from Hollywood Blvd. on to N. La Brea Ave.
>Keep going straight, through the warehouses. Turn right off Vermont Ave. and to Rodeo Rd.
>Turn left at the end and continue on, taking a slight right off Florence Ave.
Ocean to Stadium:>You start on Jennie St. Head straight through the lane and on to 10 Freeway. Go past the the spaghetti junction and take the first exit on the right.
>Head towards Centinela Ave. Then turn on to Rodeo Rd.
>Next, turn right followed by the second left on to Slauson Ave.
>Turn right when you can no longer go straight and follow Century Blvd. to the end.
Pico to Crenshaw:>Head straight and then turn left at the end of Pico Blvd.
>Follow the road and turn left on to Florence Ave. when you have the chance.
>Take a slight left on to Slauson Ave. followed by a slight right and you are done.
Watts Face Off:>Head straight for a long time, until you reach the corner of Olympic Blvd. and S. Figueroa St. Turn right here. This is almost vertical with the end target.
>Keep going straight. There is a lane at the end of S. Figueroa St. which you need to take. >Turn right on to Alameda St. and you will be done.