There are not many people who can drive themselves to their 100th birthday party, but that’s what Arnold Friedenreich did Saturday afternoon when he arrived in his light gray Honda Accord Sport. He easily emerged from the car, grabbed his wife’s walker from the trunk and escorted her to the party held at the Bonita Shores Club in northern Collier County. Soon he was walking around the crowded room, greeting the more than 80 guests that came to celebrate.