In the race to scale a same-day delivery service nationwide, eBay says it’s ready to step on the gas. CEO John Donahoe said in an interview last week that his company will this year begin rolling out same-day delivery options for eBay.com transactions in which the buyer and seller are located in the same geographic area. Buyers will be able to choose immediate delivery or pick a time window later in the day to get the delivery. They will also have the option to pick their product up or opt for normal shipping. Buyers currently can only choose from traditional shipping options. “On the core eBay site by the end of the year, we will give those choices on items on the eBay marketplace where the buyer is in the same city as the seller,” Donahoe said. eBay has been testing the same-day delivery function up to now with its eBay Now mobile app and mobile website.