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Roadster 1.5 vs 2.5

Discussion in 'Roadster' started by ibcs, Apr 29, 2014.

  1. ibcs

    ibcs Member

    Joined:
    Jan 31, 2010
    Messages:
    720
    Location:
    Ohio
    Had a great experience last night.

    Traded keys with a fellow roadster owner last night for a 20 minute drive. His a roadster 1.5 and my 2.5. Anyone that is thinking of purchasing a roadster 1.5 based upon drivability should consider the 1.5 as a perfect solution. After a nice drive, we both concluded the only difference appeared to be the audio system and the instrument cluster. We both preferred the 1.5 instrument cluster. The 2.5 has a much improved audio. Suspension and acceleration both seem identical. Both cars had the HID headlight upgrade.

    The only other difference appeared to be the stick shifter versus buttons which both serve the purpose.

    I don't know the differences mechanically, but both are amazing fun vehicles to drive.
     
  2. smorgasbord

    smorgasbord Active Member

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    The 1.5 doesn't have the kW gauge. That's extremely useful for avoiding unnecessary regen and brake light illuminations.
     
  3. dhrivnak

    dhrivnak Active Member

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    Not entirely true. The readout just below the speedometer and the VDS both can show the power going in and out of the battery. I use that feature frequently in my 1.5.
     
  4. augkuo

    augkuo Member

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    Sound deadening, glove compartment, seats, battery cooling and upgradable firmware are better on the 2.5. Also there's no aux 12V battery for the alarm, key fob, etc. on the 1.5V but I'm not sure if that's better for the 2.x since it needs replacing after awhile.
     
  5. wiztecy

    wiztecy Active Member

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    #5 wiztecy, May 5, 2014
    Last edited: May 5, 2014
    Don't you mean PEM cooling, the battery cooling didn't change. As for the 12v battery source its a toss-up. Nice not having a battery to replace every so often, but don't like having to drop the pack when there's an issue with the aux battery system in the 1.5. What's different with the upgradeable firmware? I know there's tire-learning in the 2.x's that the 1.5'x don't have.
     
  6. augkuo

    augkuo Member

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    Yes sorry PEM cooling - as for the 12V battery. I think their thought was that if the main battery died (out of range) then you should still be able to lock your car, etc. but you're right, I've had that 12V battery die on me several times (in #783) so not sure if that's really better.
     
  7. wiztecy

    wiztecy Active Member

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    I believe it was the government who made this decision happen, that if for whatever reason that the main pack failed to supply power to the 12v aux source that the parking lights, headlights, hazards would still be functional. However what if the separate 12V battery failed? You're still stuck back to the original problem!
     

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