1. Forza Motorsport 5 Achievements
2. Benchmarking the P1 achievement

Forza Motorsport 5

6,801

1,400

98

4.07*

382,929

1,653 (0%)

177-236h

Lists

• Sign in or sign up to start making your own lists.

•  Create a list

Game

• 438 want to boost

Benchmarking the P1 achievement in Forza Motorsport 5

Benchmarking the P1

Hit 245 miles per hour in your 2013 McLaren P1 by 12/31/13.

10 Oct 2013 until 31 Dec 2013

3 guides

How to unlock the Benchmarking the P1 challenge

• CR41G 88

  22 Nov 2013 23 Nov 2013 23 Nov 2013
  54 1 33

  Actions

  • Report Solution

  I went into free play.
  Chose the Le Mans track. Its the Old Mulsanne Circuit.
  Then game options; And Put 0 AI players
  
  I rented the P1, and I didn't have to pay for it because it was the first one I rented.
  
  At the end of the LONG straight. you will just hit 245/246 mph and it will unlock. Can't remember if it was straight away or once I just quit out.
  
  If you need any help. Message me.

  Guide not helping? View 2 more guides for this achievement.

  Showing most recent comments. View all comments.

  This also failed to unlock for me. I tried it twice with the same result. The second time I even upgraded the car and definitely hit at least 246 mpg.
  
  (Also got screwed out of the all legendary ship achievement in AC4. Have to replay the game for another shot because you can't backup saves.)

  Posted by BKLortz on 26 Dec 13 at 20:10

  Worked for me. Didn't think rent a car would work as the description says YOUR P1.
  
  Cheers and +1.

  Posted by Lavindathar on 29 Dec 13 at 01:56

  I can confirm that if you use rewind it will not unlock.

  Posted by NiteJokester on 29 Dec 13 at 17:46

  Leave a comment

• Have you got any tips or tricks to unlock this achievement?
  Add a guide to share them with the community.

  Add a guide
• The Ol n De

  24 Nov 2013 29 Dec 2013
  1 1 0

  Actions

  • Report Solution

  Do not do the same mistake than I did.
  I was starting a second profile for a guest later in the day, and I decided to get those challenges as well, so I took the P1 LCE to sort this one out.
  he he WRONG.
  The limited P1 has better handling yes, but a lot lower top speed, and it would not go any quicker than 230 mph on the straight.
  You definitely need the "normal" P1 for that challenge.
• Gauderio

  29 Dec 2013 29 Dec 2013
  0 0 0

  Actions

  • Report Solution

  I used the Le mans old track. Please note that you can't use the drag tires or else the challenge won't pop. Just auto tune your car to the p class.