Harley Davidson Right Saddlebag Lid, '14-later Models, Pn 90201056dwc on 2040-parts.com

The thinking man’s M3: Alpina D3 Bi-Turbo is world’s fastest diesel production car

German tuning firm Alpina has been tweaking BMWs since it started back in 1965 – in fact, it helped BMW develop the legendary 3.0 CSL, so it seems it knows its onions. However, its latest effort is something a little different. Not quite a conventional performance car, the 2013 Alpina D3 Bi-Turbo is actually the world’s fastest diesel production car, according to the firm.

Howard Hughes’s Lincoln sells for $1 million at Tulsa auction

A 1936 Lincoln Boat Tail Speedster--customized to the personal tastes of Howard Hughes--sold for $1 million at the Leake Car Show & Auction on June 13 in Tulsa, Okla. The head-turning blue and polished aluminum classic was the headliner at a sale that raked in $12.2 million and attracted more than 10,000 people to the three-day event. The Boat Tail is a truly unique car.

Arizona auctions: Plenty of bidders are willing to buy

Friday's auction results from the four major auction houses continue on a strong streak, with sales reports topping even optimistic pre-event estimates. RM Auctions completed its second and final day of sales in Phoenix, posting results totaling an estimated $30.6 million, a record-high amount for this event. The Canadian-based company also garnered the most talked about sale of the day, a 1955 Mercedes-Benz 300SL steel-bodied "Gullwing" that sold for $1.375 million.