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Inventories and Related Notes Payable - Floor Plan | 12 Months Ended
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Dec. 31, 2018
Inventory Disclosure [Abstract] |
Inventories and Related Notes Payable - Floor Plan | Inventories and Related Notes Payable - Floor Plan Inventories consist of the following:
| December 31, 2018 |  | December 31, 2017
| (In thousands) |  |
New vehicles | $ | 1,027,727 |  | $ | 1,017,523
Used vehicles | 293,179 |  | 294,496
Service loaners | 141,542 |  | 130,406
Parts, accessories and other | 66,013 |  | 70,320
Net inventories | $ | 1,528,461 |  | $ | 1,512,745
We finance all of our new and certain of our used vehicle inventory through standardized floor plan facilities with either a syndicate of financial institutions and manufacturer-affiliated finance companies or directly with individual manufacturer-affiliated finance companies and other lending institutions. The new and used vehicle floor plan facilities bear interest at variable rates based on either LIBOR or prime rates, depending on the lender arrangement. The weighted average interest rate for our new vehicle floor plan facilities was 3.10%, 2.37% and 1.85% for 2018, 2017 and 2016, respectively. Our floor plan interest expense related to the new vehicle floor plan arrangements is partially offset by amounts received from manufacturers in the form of floor plan assistance capitalized in inventory and charged against cost of sales when the associated inventory is sold. For 2018, 2017 and 2016, we recognized a reduction in cost of sales of approximately $42.2 million, $45.3 million and $45.0 million, respectively, related to manufacturer floor plan assistance. The weighted average interest rate for our used vehicle floor plan facilities was 2.98%, 2.61% and 1.78% for 2018, 2017 and 2016, respectively. The new and used vehicle floor plan facilities are collateralized by vehicle inventory and other assets, excluding franchise and dealer agreements, of the relevant dealership subsidiary. The new and used vehicle floor plan facilities contain a number of covenants, including, among others, covenants restricting us with respect to the creation of liens and changes in ownership, officers and key management personnel. We were in compliance with all of these restrictive covenants as of December 31, 2018.

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