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2023 Corvette Info Including SR Pricing, SR 2023 Visualizer, 70th Anniversary SR/Z06 Press Release; The C8 Z06 Press Release, Order Guide & Its Visualizer Link

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Corvette Inventory/Days Supply Calculations

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  • Corvette Inventory/Days Supply Calculations

    This thread, which will be updated monthly, is with great thanks to einventory.com. As I have confirmed with its owner (I had a lengthy and delightful conversation with him two days ago), days supply can be a quickly-changing monthly number — as it is based on current supply divided by last month’s average daily sales rate.

    Examples:

    In December, 2018, there were 8,000 unsold Corvettes nationwide. The average December daily sales rate was 49.5 units per day, resulting in a 162 day supply at the December sales rate.

    However, if this coming April, a month in which sports car sales typically weather-wise grow nicely, if the inventory then were to be the same sales 8,000 unsold Corvette units, but the average sales rate were to have grown to 75 Corvettes per day, the days supply would drop to 107.

    And if, perhaps because the 2019 special editions nicely coming off the assembly line around that time, and adding in the typical springtime weather boost, average monthly sales were to then have increased to 100 Corvettes per day, the days supply would drop to roughly 80 days.

    Note: BGA is currently working 5 days per week, 8 hours per day, producing at an average daily production rates of 93 Corvettes/day.

    While there are always extenuating and different circumstances, the auto industry’s desired average “days supply” is usually 60 days for each model, meaning that they have enough inventory in stock to show new customers, yet now too much inventory to cost them dearly with carrying charges.
    Last edited by John; 01-20-2019, 04:41 PM.
    Z06 coming late this summer: Hypersonic Gray HTC, two tone blue interior, complete high wing/aero package. CCB’s, with every piece of visible carbon fiber available. Lifetime, annual contributors, and 24 year members of National Corvette Museum. Home is the beautiful Pacific Northwest.

  • #2
    Great thread, will be very interesting how the numbers change in the next couple/few months.

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    • #3
      If corvette sold 18000 units in last year....and has 8000 unsold inventory on hand...

      thats says over 5 months inventory to me....

      if 8000 unsold inventory remains and the annual sales stay relatively constant at 18000 units...

      your inventory will take around 5 months to sell through....

      cutting prices through incentives is a proven way to move inventory...

      ive seen porsche utilize dealers taking unsold inventory and using them as “demos” throughout the country to get an incentive like pricing strategy to take hold and attract buyers...

      gm doesnt or hasnt done that very often with corvettes.

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      • #4
        Originally posted by JB View Post
        If corvette sold 18000 units in last year....and has 8000 unsold inventory on hand...

        thats says over 5 months inventory to me....

        if 8000 unsold inventory remains and the annual sales stay relatively constant at 18000 units...

        your inventory will take around 5 months to sell through....

        cutting prices through incentives is a proven way to move inventory...

        ive seen porsche utilize dealers taking unsold inventory and using them as “demos” throughout the country to get an incentive like pricing strategy to take hold and attract buyers...

        gm doesnt or hasnt done that very often with corvettes.

        Actually 162 days is over 5 months, but this calculation ignores the units still being produced. If the factory makes cars at a higher rate than they sell (as in the example in the OP) then the inventory number will increase.

        A shutdown will have to come soon, if the C8 is coming out this year.

        Let's pick a date - say the end of March, and make a bunch of assumptions.

        Let's say that 15,000 C7's sell in CY 2019. That's an average of 1250 a month.

        So an inventory forecast for end March might be:

        8,000 minus (3 x 1250) plus new manufacture of (93 x 60 days) = 8,000 - 3,750 + 5,580 = 9,830.

        If the plant shut down after March 31, then the inventory of 9,830 would represent 8 months of sales, Probably about right if the C8 starts getting delivered before the end of the year.

        Hence my belief that notice of a plant shutdown (which would have to come in advance), and it's timing will be a firm indication of GM's plans regardless of whether a reveal has happened by then.
        Last edited by Bikerjulio; 01-21-2019, 09:45 AM.
        2020 C8 Corvette.D.O.B 2/03/2020
        Shadow Grey Metallic on Black
        2LT, Z51 + MRC. GT1 seats.
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        Carbon flash mirrors and spoiler.

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        • #5
          Going to be interesting to track these numbers monthly.

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