It's all about risk, and money management... If you have the cash siting around in investments or something and the returns are making more than what you'd have to pay on interest to take out an unsecured loan to go racing... Take the loan. If shit goes sideways, you can always sell back out/pull from investments to square up the loan. When I raced cars I knew a few guys who'd actually paid off their houses fully at one point.. Then, re-fuckin-mortgaged them to fund another whole ass race car build/race team start up. I watched a guys race car burn to the ground... Month or two later he was back at the track with a fairly new, but 2nd hand Fall-Line Motorsports built Porsche 911... Dude put his house up for the loan.
Back to the subject at hand...I've always took out a loan....road the bike on the street for a few years and then converted it to a race bike. I know...not always racing the latest and greatest but didn't want to pay on a loan for something I had and binned.....and ALWAYS paid the loan back. I signed on the dotted line. To do anything else would make a person a disgusting parasite.
Just throw it in there with insurance, banking and real estate sales and the pond would have clear water.