Forza Motorsport 2

There are a few time trails that can be pretty hard but most are easy to complete. I'm sure the last nurnburg one will be the hardest as you need to go wide open as much as possible without going off the road. You can some but it depends on how fast you can get through the turns.

If you are running into problems though, before going into the time trail, you can click Y to bring up the leaderboards and see the top overall time on that track. Daveyskills is the gamertag that is on top of every leaderboard and you can download his car setup. It's tuned to help you drive the car better and faster. So download his setup, then before you start the race, load that setup and give it another try. It should help you out. I know it helped me and I was getting most of the time trails down in the 1st lap if not by the 2nd lap for sure.

Last track is worst. I downloaded a ghost car from a friend with a slightly faster time and use his car setup too. His ghost car guided me on the track. After few laps i did it.

Take a look at ZeroDesolation's solution above. This is essentially what got me through the time trials.

However, there are a couple of things I would like to add. There are no penalties for using assists (traction, stability, ABS, etc.). So, if you need them, you should be using them! I went ahead and turned on ABS, traction control, and (sometimes) stability control. Additionally, if the race line is off or on "braking only", turn it on to "full". The racing line helps immensely, and there's little reason not to use it here (no penalty!). Although the brake points (yellow-red sections) aren't 100% efficient (you can often brake less or later), at least you'll have a good race line to follow in general.

Assists overview:
Because many of the cars in Time Trials are fast, powerful, and unfamiliar, it takes a lot more concentration and skill to beat the listed time without assists. TCS (traction control) cuts power to the engine when your tires lose traction (usually during acceleration), preventing you from going nowhere or skidding into a wall. ESC (stability control) applies the brakes to individual wheels during a skid, helping you to keep going in the right direction. ABS (antilock brakes) maximize braking effectiveness by automatically hitting the brakes in rapid succession to prevent a long lockup. Not only does this increase the effectiveness of braking, but it also prevents an out of control skid that may result from locking the brakes. The racing line provides an "optimal" line that would give you the fastest time possible. As I said above, it isn't perfect, but since there is no penalty for using it (or any other assist), you might as well use it!

Essentially, the Time Trials are a set of hot laps that push you to become proficient at driving many different cars on many different tracks. While following ZeroDesolation's solution and by using all the help you can get, these time trials become much easier. Keep your foot on the gas (or finger on the trigger?), hit the corners hard, stay on the track, and drive your way to victory!

As the previous solutions state, you must complete all the time trials below the target time. Make sure to delete all DLCs while attempting this!! The DLCs add additional trials which aren't required to obtain this achievement. Happy hunting