Case Study 1 — Two Months, One Pay Plan: Why Carmen's "Smaller" Deals Paid More

A fully worked head-to-head, deal by deal, on the same pay plan. All people and numbers are illustrative composites; pay plans vary by store and year — treat the figures as a worked example, not a quote.

The Setup

It's the last week of March at Summit Auto Group. Big Mike, the sales manager, posts the month-to-date board. Two names sit near the top, and they tell two completely different stories about how to make money selling cars.

Rick Bauer has sold 14 cars and is, in his own words, "grinding gross like always." His worksheets are fat — he holds the line on price, makes the customer work for every dollar of discount, and he's proud of his front-end numbers.

Carmen Delgado has sold 24 cars and is on pace for her usual 25-plus. Her front-end grosses are noticeably thinner than Rick's. To a green pea reading the board, it looks like Rick is "winning on gross" and Carmen is "giving cars away."

Jordan Banks, three weeks in, asks Carmen the obvious question: "Your grosses are way lower than Rick's. How are you not making less than him?"

Carmen smiles. "Let's pull both our months and do the actual math. Bring a calculator. This is the most important arithmetic you'll do all year."

Both are on the same plan — the sample Summit Sales Consultant plan:

• Commission: 25% of front-end gross + 5% of back-end gross
• Mini: $150 per delivered unit
• Volume bonus (retroactive): $100/car at 10–14 · $200/car at 15–19 · $300/car at 20–24 · $400/car at 25+
• CSI bonus: $500/month if rolling CSI is above store target; $0 if below
• Spiffs: none posted this month

What Happens — Rick's Month, Line by Line

Rick finishes March at 14 units. Because he grinds, his average front-end gross is high — $900/car.** But the grind has costs that don't show up on the worksheet: his customers arrive in F&I worn down and defensive, so they buy few products — his back-end participation averages just **$300/car. His CSI has been running below the store target for two months (customers don't love the experience), so no CSI bonus.

RICK — March, 14 units
  FRONT-END COMMISSION
    Front gross/car:                $900
    Commission/car: 25% × $900    = $225   (above the $150 mini ✓)
    14 cars × $225                = $3,150

  BACK-END COMMISSION
    Back gross/car:                 $300
    Commission/car: 5% × $300     = $15
    14 cars × $15                 =   $210

  VOLUME BONUS (retroactive)
    14 units → 10–14 tier @ $100/car
    14 × $100                     = $1,400

  CSI BONUS (below target)         =     $0
  ------------------------------------------
  RICK'S MARCH TOTAL              = $4,760

Rick is happy. $4,760 is a decent month, and his front-end grosses were the best on the board. He tells Jordan, "See? Gross is king. Carmen gives away the front; I protect it."

What Happens — Carmen's Month, Line by Line

Carmen finishes March at 25 units (she sold one more on the 31st — more on that in a moment). She gives fair, fast, transparent deals, so her average front-end gross is lower — $450/car.** But her customers love the experience: they trust her, so they arrive in F&I relaxed and buy products they genuinely want — her back-end participation averages **$1,000/car. Her CSI is well above target.

CARMEN — March, 25 units
  FRONT-END COMMISSION
    Front gross/car:                $450
    Commission/car: 25% × $450    = $112.50  → BELOW the $150 mini!
    Each deal pays the mini:        $150
    25 cars × $150                = $3,750

  BACK-END COMMISSION
    Back gross/car:                $1,000
    Commission/car: 5% × $1,000   = $50
    25 cars × $50                 = $1,250

  VOLUME BONUS (retroactive)
    25 units → 25+ tier @ $400/car
    25 × $400                     = $10,000

  CSI BONUS (above target)         =   $500
  ------------------------------------------
  CARMEN'S MARCH TOTAL           = $15,500

Jordan stares at the two totals. Rick: $4,760. Carmen: $15,500. Carmen made more than three times what Rick made — with lower front-end gross on every single car.

"How?" Jordan asks.

"Read the four lines," Carmen says. "Where did I beat him?"

The 31st: The Cliff in Action

Before the analysis, one detail. On the morning of March 31, Carmen was at 24 units. A walk-in came on the lot at 5:40 p.m. — a quick, clean deal, a repeat customer's referral who already knew what she wanted. Rick, also on the floor, waved it off: "I'm done for the month, I've got my fourteen, I'm not staying late for a mini."

Carmen took the up, stayed until 7, and delivered her 25th car.

Watch what that 25th car was worth to her:

THE VALUE OF CARMEN'S 25th CAR
  At 24 units: volume bonus = 24 × $300 (20–24 tier) = $7,200
  At 25 units: volume bonus = 25 × $400 (25+  tier) = $10,000
  Re-rating swing from the 25th car alone:   $10,000 − $7,200 = $2,800
  PLUS that car's own commission:
    Front (mini): $150  +  Back (5% × ~$1,000): $50  =  $200
  ------------------------------------------------------------
  Total value of the 25th car:  $2,800 + $200 = ~$3,000

That last car — the one Rick waved off as "just a mini" — was worth about **$3,000** to Carmen, because it crossed her into the top retroactive tier and re-rated all 25 cars from $300 to $400 each. Rick saw a mini. Carmen saw the highest-paid car of her month.

Analysis: Where the Money Actually Came From

Here's the side-by-side that Jordan taped inside his locker:

What Rick did "right" (and why it failed him): Rick genuinely is skilled — he can hold a price and close a tough customer. His front-end gross per car ($900) crushed Carmen's ($450). On the one number he watches, he won decisively. The problem is that number is the smallest lever on the pay plan. Every dollar he ground out of a reluctant customer cost him:

• Volume — the grind is slow and exhausting, so he closed fewer ups and got zero referrals; he never came close to a high tier.
• Back end — his worn-out customers bought almost nothing in F&I.
• CSI — his customers didn't love the experience, costing him the $500 bonus.
• Next month — every one of his 14 cars came from cold floor traffic he has to win again, from zero, in April.

What Carmen did right: She optimized the whole plan, not one line. Fair, fast, transparent deals → more volume → the top retroactive tier ($10,000!) → trusting customers → high back-end participation → a CSI bonus → and a referral base that will feed her April. Her "smaller" deals were smaller only on the line that mattered least.

The deepest point: This isn't a morality tale dressed up as math — it is the math. Theme #3, ethics are profitable, isn't an aspiration here; it's the arithmetic of a well-designed pay plan. The plan pays Carmen more because she treats customers better, not despite it. And notice the structural insight: a good pay plan aligns the salesperson's income with the customer's experience and the store's long-term health. (When you find a plan that rewards pure front-end grind with no volume tiers, no back-end share, and no CSI — that tells you something about the store. See Chapter 33.)

Discussion Questions

1. Rick's front-end gross per car was double Carmen's, yet he earned a third of what she did. Walk through the four income lines and explain, in your own words, exactly where his "win" turned into a loss.
2. The 25th car was worth ~$3,000 to Carmen but looked like "just a mini" to Rick. What does this reveal about the difference between a salesperson who understands their pay plan and one who doesn't?
3. Suppose Carmen's plan were not retroactive (bonus paid only on units above each threshold). Recompute her volume bonus and total. How much of her advantage over Rick survives? What does this tell you about the importance of decode-checklist item #4?
4. Rick says "gross is king." Is he wrong, or just incomplete? Under what (rare) pay-plan design might Rick's strategy actually be the higher-earning one?
5. If you were Big Mike and wanted to encourage Carmen-style selling and discourage Rick-style grinding, what features would you build into the pay plan? What would you remove?

Your Turn — Mini-Task

Take the sample Summit plan above. Invent your own two salespeople for April: a grinder and a consultant. Give each a unit count, an average front-end gross, an average back-end gross, and a CSI status — but make your numbers different from this case study. Then compute both totals, line by line, the way Carmen taught Jordan. Before you do the math, predict who wins and by how much. Were you right? What surprised you? Write three sentences on what the exercise changed about how you'll behave on the floor at month-end.