It was the other way around, Spike. Daisy had a '73/'74 Plymouth Road Runner in the Georgia episodes and a '71 Plymouth Satellite Sebring (with graphics to look like the later Road Runner) for the end of season 1 and part of season 2. The last appearance should have been when it went over the cliff in 'The Runaway', but, due to the episodes being shown out of order (as Roger mentions above), the yellow car briefly returned four episodes later in 'Find Loretta Lynn'.
From 'One Armed Bandits':
From 'Money to Burn':