Can you provide examples of auctions or events that have significantly influenced the classic car or motorcycle market, and what trends have emerged from these events?
How do classic car and motorcycle clubs contribute to the preservation and appreciation of vintage vehicles, and what role do they play in the automotive community?
How have restoration techniques and technologies evolved over the years, and what impact has this had on the preservation and value of classic cars and motorcycles?
What are the most significant factors affecting the value of a classic car or motorcycle, and how do they vary between different models and manufacturers?
What impact did World War II have on the production and popularity of motorcycles, and how did models like the Indian Scout and BMW R75 contribute to military efforts during the war?
How have vintage motorcycle restoration practices evolved, and what are some key considerations for enthusiasts looking to restore classic bikes to their original condition?