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Guide for how to compare different cars

Discussion in 'Ferrari Discussion (not model specific)' started by Corsa, Mar 26, 2004.

  1. Corsa

    Corsa Karting

    Nov 1, 2003
    109
    Stockholm
    Full Name:
    Peter
    #1 Corsa, Mar 26, 2004
    Last edited by a moderator: Sep 7, 2017
    It is difficult to compare cars since they have such a different configuration.
    As a help to divide cars in different classes I have made a formula that ends up with a comparing number. Now we can compare cars with different configuration from a performance point of view. Cars with almost the same number can be compared others can not. This gives an indication of how fast or quick a car should be with that specific configuration. If it is up to par in real life with its neighbor in the list, the factory has done their homework well, otherwise not.

    Of course this is just a game, remember that! :)

    The formula is as follows:

    ((Engine size in liters x (1.7 for turbo or supercharging for obvious reasons) x (1.2 for 4 wheel drive. More power more use of it) + (Size of car is represented by number of cylinders. Each cylinder adds 0.05)) x (Track capability indicate for what purpose the car was designed for)

    Track Capability (contemporary)
    Category Factor
    1 GT car 1.5
    2 Sportscar 2.0
    3 Supersportscar with track capability 2.5
    4 Race car / Track day 3.0
    5 Pure racing / FIA car 3.5

    Ciao
    Peter

    Check attachment or just this list. Pity I cant attach Excel files.

    Car Category number
    Elise S2 111R 5,0
    996 5,9
    Exige S2 6,0
    XKR 6,9
    4200 Coupe 6,9
    NSX Coupe 7,0
    328 7,2
    355 7,8
    Modena 8,0
    NSX-R 8,8
    C5 9,2
    C6 9,6
    996 GT3 9,8
    Challenge Stradale 10,0
    996 GT3 RS 11,7
    Challenge 12,0
    Maranello 12,7
    Esprit V8 12,7
    Z51 12,8
    288 GTO 12,9
    Gallardo 13,0
    996 GT3 RSR 13,7
    F40 13,8
    Trofeo 13,8
    360 GTC 14,0
    F50 14,0
    Z06 15,3
    996 TT 15,3
    Carrera GT 15,5
    996 GT2 16,1
    Murcielago 16,1
    Viper SRT-10 17,6
    Enzo 17,8
    S7 18,5
    Ford GT 19,2
    Zonda C12 19,8
    F1 19,8
    Koenigsegg CC 8S 20,6
    Koenigsegg CCR 21,0
    Viper GT2 21,3
    575 GTC 23,1
    MC12 23,1
    F1 GTR 23,1
    F1 LM 23,1
    SLR McLaren 24,4
    C5R 25,9
    S7R 25,9
    Murcielago R-GT 28,1
    F50 GT 30,1
    Viper SRT-10 Comp 30,8
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  2. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    6,997
    So, a car with a 5 PSI blower gets the same rating as a car with a 25 PSI blower? This would represent a 2X+ difference in engine output, yet no change in rating!?!

    Why count cylinders at all? you've already got the displacement accounted.

    It is not clear that 4WD is all that useful on race tracks, especially when compared to the weight it adds to the vehicles.

    Why no degredation for weight of the car? Like <<big equation>> / weight ?
     
  3. Varenne

    Varenne Formula Junior

    Nov 8, 2003
    554
    Atlanta
    Full Name:
    Mark
    Peter,

    It looks like you put a *lot* of work into this. If you would be willing to try again to post this with the excel spreadsheet, there must be a way to do so. I know I've seen other posts with spreadsheets attached.

    I'm trying to figure what I might compare the 328 to, just for an example. You show a "category number" of 7,2. Are you suggesting it's appropriate to compare this with anh NSX couple with a category number of 7,0 ? Perhaps I'm missing something. Either way, this is very interesting.
     
  4. alanhenson

    alanhenson Formula 3

    Dec 2, 2003
    1,335
    Most fun= higher number
     
  5. Corsa

    Corsa Karting

    Nov 1, 2003
    109
    Stockholm
    Full Name:
    Peter
    Yes I know all that, Mitch. Not so much to do at work today :)
    A real formula would be quite difficult to do and should it be optimized for track or road etc. I don't have more time for this but if someone wants to continue, please go ahead.

    What I basically want to show is that in some threads we are comparing apples and pears.

    Ciao
    Peter
     

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