As Cornish said its not terribly difficult. Boredom is your biggest enemy. 50 mill takes about 40 minutes. My advice would be to complete the offline game. You will get plenty of practice at drifting and will need to pick up 3.5 mill on a number of tracks.
Once you can get 3 million on snow widow you could get 50 mill, its just getting you 3 mill 17 times in a row ![Smile [:)]](/emoticons/emotion-1.gif)
I found that I got a good drift going around the corners and kept it fairly straight down the straights breaking if required so I didn't get too fast and hit the walls at the end. Just keep enough speed going to keep the slide going down the straight and make your points on the corner.
Another tip for 50 mill, when I had a nice controlled slide going around the corners I paused the game every 5-10 million points and took a break. Otherwise my eyes started going funny and I got a bit reckless. Watched TV for 10 minutes and continued. Having the nice slide meant I could restart the game easily. If my slide was a bit rough I would do another lap.
I have got 50 mill on snow widow in a RX 7 and 25 mill on battle royale in a muscle car - I forget which one.
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