# Which dealer management systems are highest-rated for running a full auto dealership across sales, service, parts, and finance in one platform based on user reviews?

Looking for input from G2 reviewers and dealership owners, dealer principals, and general managers in the Dealer Management Systems category, specifically from those who have evaluated or implemented a DMS specifically because their previous technology environment required separate tools for CRM, desking, F&I, service scheduling, parts inventory, and accounting.

The platforms with the strongest all-in-one dealership platform evidence:

Dealertrack DMS: The connected finance-to-contracting-to-signing flow that moves a deal from desk to funded without re-entering data at each step is the all-in-one trust signal for dealerships where deal jacket accuracy and time-to-funding are the primary F&I performance measures.
CDK Global: The OEM integration that feeds warranty, incentive, and programme compliance data directly into the accounting and reporting environment closes the loop that separate accounting tools cannot complete.
Tekion Automotive Cloud: Tekion's architecture that gives every department real-time access to the same customer, vehicle, and transaction data is credited for producing the cross-departmental visibility that legacy platforms approximate through scheduled data syncs rather than genuine real-time connectivity.
Reynolds and Reynolds ERA: The financial reporting depth that connects every department's transactions to the same general ledger in real time gives dealer principals a profitability picture that assembled multi-vendor environments cannot reliably produce.
DealerSocket CRM with DMS: The CRM-first all-in-one model that keeps the customer relationship record at the centre of every departmental interaction from initial lead through delivery and subsequent service visits is described as the all-in-one trust model for dealer principals

For dealership owners and dealer principals who have implemented an all-in-one DMS after operating with separate departmental systems: which department proved hardest to consolidate onto the new platform, and was the difficulty caused by missing features in the DMS, existing habits among departmental staff, or integrations with OEM systems that the platform could not replace?

##### Post Metadata - Posted at: 7 days ago - Author title: Marketing Executive - Net upvotes: 1 ## Comments ### Comment 1 I’d be curious whether the “one platform” promise really survives after the sale. Do service and parts teams actually work from the same customer and vehicle record, or do separate workflows start creeping back in? ##### Comment Metadata - Posted at: 4 days ago - Author title: Writer ## Related discussions - [How well does Trello scale into a larger team?](https://www.g2.com/discussions/1-how-well-does-trello-scale-into-a-larger-team) - Posted at: over 13 years ago - Comments: 6 - [Can we please add a new section](https://www.g2.com/discussions/2-can-we-please-add-a-new-section) - Posted at: over 13 years ago - Comments: 0 - [Quantifiable benefits from implementing your CRM](https://www.g2.com/discussions/quantifiable-benefits-from-implementing-your-crm) - Posted at: over 13 years ago - Comments: 4