According to Confidential Bulletin #50 dated November 17, 1950 (ALL DEALERS series, should be #52 in ALL DIRECT DEALERS series) in addition to Accessory Group 9, the following items were manditory options:
- Dragon Vinyl upholstery at $95.00 dealer & $125.00 retail plus 6.39 Federal Tax either price
- Hydra-Matic Automatic Transmission at $123.00 dealer & $160.00 retail plus $8.61 Federal Tax either price
- 6.70 x 15 Whitewall Tires, set of 5 at $14.50 dealer & 20.00 retail plus 84 cents Federal Tax either price
Plus the price of the basic K512 deluxe 4-door sedan itself. This original version of the 1951 Dragon did NOT have vinyl top.
On February 6, 1951, Confidential Bulletin #57 (ALL DEALERS series, should be #59 in ALL DIRECT DEALERS series) announced the addition of the Dinasour Vinyl Sport Topping at $66.25 dealer, $87.00 retail with $4.45 Federal Tax to be added to either price and removable center arm rests-front & rear for $22.40 dealer, $30.00 retail plus 1.40 Federal Tax either price. Hydra-Matic and the whitewall tires in 6.70 x 15 were still offered at previous prices.
All prices listed above were increased March 2, 1951 when OPS approval was given to K-F for increasing sell prices based on increased material and production costs.