Bryan DeBoer
Analyst · Stephens
Thank you, Sid. Good morning, everyone. I'd like to thank the board, particularly our independent directors, for appointment to CEO. Looking forward, Lithia will continue to build on teamwork, restore entrepreneurial spirit and an awareness of customer need to drive our success. Today, we reported a record first quarter adjusted income from continuing operations of $15.8 million compared to $8.8 million a year ago. We earned $0.60 per share on an adjusted basis in the first quarter compared to $0.33 per share in the first quarter of 2011. We grew our revenues 30% and nearly doubled our earnings per share for the first quarter of 2012 over the prior period. Total same-store sales were up 21% in the quarter, reflecting increases over the prior period in all business lines. All metrics from this point forward would be presented on a same-store basis unless otherwise noted.
New vehicle sales increased 25%. This increase was on top of a 40% increase in new vehicle sales in 2011. On a unit basis, we sold approximately 11,600 new vehicles, an increase of 2,200 units or 24%, well above the national average of 13%. Our stores continue to drive new vehicle sales and increase our market share. While our overall new vehicle sales increased in the quarter, our domestic stores increased 32%, while import and luxury stores were up 17%.
Our team continues to outperform national results and increase our share in the regional markets. We continue to target a 3% to 5% growth in market share during 2012 on top of the underlying market recovery. Used retail vehicle sales increased 18% in the quarter. We sold approximately 10,800 retail used vehicles, resulting in a used to new ratio of 0.9:21. We sold a monthly average of 45 used vehicles per store in the first quarter of 2012, up from 39 used vehicles per store in 2011. As you recall, our goal is to sell an average of 60 used vehicles per store.
In the quarter, value autos or vehicles over 80,000 miles performed well. This segment grew 46% year-over-year and had a gross margin of 20%. Although these vehicles have lower selling prices, overall, the average selling price on our retail used vehicles increased 2% due to underlying market strength. We anticipate continued headwinds in sourcing 3 to 7 year-old used vehicles due to the lower number of cars manufactured in 2008, '09 and '10. We have focused on retailing older used vehicles to offset this shortage. Throughout the quarter, late model used inventory remains scarce, a trend that will continue through 2013. The good news is that the supply’s constraint may spur additional new vehicle sales, as customers convert to purchasing a new vehicle given the increasing market value of late model used vehicles. We are also concentrating on capturing as many trade-in opportunities as possible. The new vehicle dealer remained at the top of the food chain when it comes to procuring used vehicle inventory. We will continue to capitalize on this competitive advantage to maximize our used vehicle retail opportunity.
In the quarter, our F&I per vehicle was over $1,000 per unit. On a GAAP basis, we arranged financing on 75% of the vehicles we sold. We sold 41% of our customers a service contract and 37% of our customers' Lifetime Oil product. Of the vehicles we financed in the quarter, 15% were to sub-prime customers compared to 12% in 2011. In addition, our sub-prime closing ratio or the percentage of customers, who successfully obtained financing after submitting credit information, increased 13% year-over-year. Over our entire customer base, the average credit score in the first quarter was 712. In short, credit trends continue to be positive.
Our service, body and parts sales increased almost 5% in the first quarter. Wholesale parts and body shops showed significant increases of 11% and 13%. Customer pay work increased 6%, which is the 11th consecutive quarter of same-store sales improvement. Warranty still faces headwind as they have decline 12%. Warranty repair opportunities have declined as initial vehicle quality and reliability continued to improve. Also, we still face difficult comparisons from the declining number of units in operations under warranty. We expect these trends to continue in 2012 and potentially beyond. Despite this, our customer pay increases have been more than enough to offset the decline in warranty work we have experienced in recent quarters.
Regarding regional performance. All states performed well, with all but one posting double-digit increases. Montana, Texas, Nevada and North Dakota all delivered increases over 25%. Our gross profit per new vehicle retailed was 24.39 compared to 23.63 a year ago. Gross profit per used vehicle retailed increased to 25.25 compared to 23.86 last year. Our stores remained focused on deal average or the gross profit dollars per vehicle sold rather than the margin percentage. As sales price increases, a decline in vehicle margin is possible despite gross profit dollars per transaction being unchanged or higher than the prior year. We are comfortable with our performance here and continue to believe that margin erosion will not be a significant challenge in 2012.
In the quarter, our overall gross margin was 16.8% compared to 17.4% in the same period last year. Increases in new and retail used vehicle sales outpaced our other business lines, and explains the decline in overall margin. Despite a lower margin percentage, overall gross profit dollars increased 26% over our first quarter 2011 results.
Now to discuss corporate development. We continue to seek exclusive, domestic and import franchises in midsized markets and luxury franchises in larger markets. Also, we want to reiterate that we remain disciplined on our acquisition strategy to ensure ROE targets that meet or exceed our internal hurdle rates. The acquisition market remained active, and we continue to look for opportunities to purchase stores that fit our strategy. As usual, we do not comment on acquisitions until they close, but anticipate completing transactions in 2012.
With that, I will turn the call over to Chris, our CFO, to discuss our financial position, new credit facility and increased guidance for 2012.