Which DMS has the largest market share?

CDK Global and Reynolds & Reynolds together serve the majority of U.S. franchise rooftops, with Dealertrack a strong third and Tekion the fastest-growing cloud-native challenger.

What contract length should a dealer expect from a DMS?

Legacy DMS contracts (CDK, Reynolds) typically run 5–7 years with staged annual price escalators. Dealertrack and Tekion offer shorter 3-year terms with more flexible exit clauses.

Which DMS is best for a single-rooftop independent dealer?

Independents typically look outside the big four — Auto/Mate, PBS, DealerBuilt, and Advent are sized and priced for single-rooftop and small groups. Tekion is the only cloud-native option in the majors that scales down.

Buyer Guide

Dealer Management System comparison

A neutral, side-by-side look at the four major DMS platforms — CDK Global, Reynolds & Reynolds, Dealertrack, and Tekion — for dealers weighing a switch. Focused on the core platform: features, contract terms, deployment model, and market share.

AT A GLANCE

Legacy incumbents

CDK Global, Reynolds & Reynolds

Cloud-hosted challenger

Cox / Dealertrack DMS

Cloud-native challenger

Tekion ARC

Typical contract length

3–7 years

Head-to-head comparison

DMS	Deployment	Focus	Contract	Market share	Integrations
CDK Global	Hosted (legacy) + Drive Cloud	Full franchise suite; strong F&I and accounting	5–7 yrs, annual escalators	~35% of U.S. franchise rooftops	Fortellis marketplace (paid, certified)
Reynolds & Reynolds — ERA-IGNITE	Hosted, proprietary hardware historically	F&I document library, forms compliance	5–7 yrs, most restrictive exit terms	~25% of U.S. franchise rooftops	RCI (highest per-vendor fees, gated)
Cox — Dealertrack DMS	Cloud-hosted	Cox ecosystem — vAuto, Kelley Blue Book, Xtime	3–5 yrs, more negotiable	~15% of U.S. franchise rooftops	Opentrack (low/no per-vendor fee)
Tekion — ARC	Native cloud (single codebase)	Modern UX, real-time data, mobile-first	3 yrs typical, cleaner exits	~5% and growing fastest of the majors	Native REST API + OAuth2, no cert fee

Market-share figures are directional estimates for U.S. franchise rooftops; independents skew heavily to smaller DMS vendors not listed here.

Buyer verdict by dealer profile

Large franchise group, deep F&I workflows: CDK or Reynolds remain the defaults — accept the contract terms in exchange for depth and forms coverage.
Cox-ecosystem dealer (vAuto, KBB, Xtime): Dealertrack is the natural fit; Opentrack keeps third-party integration costs down.
Growth-minded group prioritizing UX and data: Tekion is the only cloud-native option with a real-time API and no per-integration certification fee.
Single-rooftop independent: Look outside the big four — Auto/Mate, PBS, and DealerBuilt are sized and priced for you.

What to negotiate

Annual price escalator cap (target ≤ 3%).
Exit clause and data-portability terms if you switch.
Third-party integration certification fees — who pays?
Included modules vs a-la-carte (accounting, service, F&I, CRM).
Uptime SLA and support response times.

Already know your DMS and shopping integrations? See the DMS integration guide for how CDK Fortellis, Reynolds RCI, Dealertrack Opentrack, and Tekion ARC compare on connectivity.