The first interesting observation is that the packet delivery ratio is almost independent from the speed if it is lower than 10 m/s. As noticed previously, values of this metric are very similar for OLSR and DSDV and these protocols again outperform DSR. AODV presents comparable results for the speeds greater than 10 m/s. It provides better performance in highly mobile environment. The highest delivery is achieved by OLSR protocol. DSR achieves the worst results. Route cache that stores the whole paths is not updated often enough. Secondly, end-to-end delay and routing load confirm the expectation that the metrics tend to be stable for the increasing maximum speed of mobile nodes. Also in this case OLSR outperforms all the other protocols ensuring the lowest packet delay. DSDV and OLSR are characterized by the smallest routing overhead- almost at the same level for both of them since these are proactive protocols and send routing updates periodically.