The traditional vehicular networks focus on end-to-end communications, which incur vehicular data delivery inefficiency. In this letter, we introduce the Named Data Networking (NDN) to the vehicular network, and aim to exploit the advantages of NDN to enhance the vehicular data delivery efficiency. However, in the vehicular network, a large number of mobile vehicles are involved in the routing backbone, which results in the frequent change of the backbone topology and makes it difficult to maintain the forwarding information and achieve the data delivery aggregation that is the main advantage of NDN. Consequently, vehicles usually employ broadcast to perform data delivery, which leads to considerable data delivery costs and latency. To reduce the data delivery cost and latency, in this letter we propose a data delivery method for VNDN. The main idea behind the method is to maintain forwarding tables and achieve aggregation by constructing a vehicular backbone so that multiple consumers can depend on forwarding tables to acquire data via one data deliver process in a unicast way. The method is assessed, and the experimental results demonstrate that the proposed method reduces the data delivery costs and latency.