Sounds by ?
For Ford R4 Petrol Engines 

Code:

audio
{
  skid
  {
    sample=skid.wav
    sample2=skid.wav
  }
acc_all
	{
		attack=2600
		decay=2600
	}
accelerate_out
  {
   volume=2.0
    smp0~audio.acc_all
    {
      sample=fordr4petrol/ford4cylinder.wav
      min=1
      max=9000
      natural=6000
    }
  }
decelerate_out
  {
   volume=2.0
    smp0~audio.acc_all
    {
      sample=fordr4petrol/ford4cylinder.wav
      min=1
      max=9000
      natural=6000
    }
  }
accelerate_in
  {
   volume=2.0
    smp0~audio.acc_all
    {
      sample=fordr4petrol/ford4cylinderint.wav
      min=1
      max=9000
      natural=6000
    }
  }
decelerate_in
  {
   volume=2.0
    smp0~audio.acc_all
    {
      sample=fordr4petrol/ford4cylinderint.wav
      min=1
      max=9000
      natural=6000
    }
  }
  }
  wind
  {
    smp0
    {
      sample=wind_ext.wav
      volume=0.9
      ; Speeds in m/s
      min=0
      max=100
      natural=40
    }
  }
}