Need for Speed

You'll unlock Eddie's car upon completion of his 'Eddie's Challenges' storyline. Grab it for free from the garage - then go and play and win any event in the game. Easy achievement and an easy 80 gamerscore.

Eddie's Skyline is awarded for completing all 15 of Eddie's Challenges (which also unlocks Eddie Is Back in Need for Speed) after which Eddie's car is ready to buy in your garage but Eddie will also call you and inform you that you own his car now.

Eddie's car will be purchasable from your garage for the lovely price of 0.

Now once owned and driving go to any race you're comfortable with and win the event with Eddie's car, I looked for any (easy) events. I used 'In The Driver's Seat' which is just up from the garage on the map and takes about 2minutes. Eddie's car isn't bad but its also not the best.

Here's a video (Gotta love other people driving head onto you in the world)

Once you have finished Eddie's challenge and beaten him in the final event (15th event) you will get a call from Eddie who congratulates you on winning the race and then shortly afterwards you'll get a call from Travis. Once Travis has called Eddie's car is unlocked and free in the garage. buy it and pick any event, win the event and the acheivement will unlock. nice and easy 80G