Summary Verdict
CARS: 2—ACIW: 3wins
Rule of 40
20.9CARS
28.0ACIW
check_circleACIW leads
Revenue Growth
0.6%CARS
10.4%ACIW
check_circleACIW leads
Gross Margin
88%CARS
49%ACIW
check_circleCARS leads
FCF Margin
20.4%CARS
17.6%ACIW
check_circleCARS leads
Operating Margin
8.3%CARS
18.8%ACIW
check_circleACIW leads
NRR
—CARS
—ACIW
Metric
Rule of 40Efficiency score
CARS
20.9
ACIW
28.0check_circle
Revenue GrowthYoY
CARS
0.6%
ACIW
10.4%check_circle
Gross Margin% of revenue
CARS
88%check_circle
ACIW
49%
FCF MarginFree cash flow
CARS
20.4%check_circle
ACIW
17.6%
Operating MarginGAAP
CARS
8.3%
ACIW
18.8%check_circle
NRRNet retention
CARS
N/A
ACIW
N/A
EV / RevenueValuation multiple
CARS
N/A
ACIW
N/A
Market CapUSD
CARS
N/A
ACIW
N/A
ARR GrowthYoY
CARS
N/A
ACIW
N/A
CAC PaybackMonths to recover
CARS
N/A
ACIW
N/A
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insights
Analysis
As of Q4 2025, Cars.com Inc. trades at N/A EV/Revenue versus ACI WORLDWIDE, INC. at N/A. On the Rule of 40, Cars.com Inc. scores 20.9 compared to ACI WORLDWIDE, INC.'s 28.0, placing ACI WORLDWIDE, INC. ahead in operating efficiency. Gross margins stand at Cars.com Inc. 88% vs ACI WORLDWIDE, INC. 49%.
Sector Context
Both companies operate in the Vertical SaaS sector. The median columns above show where each company stands relative to their peers.