Respect points per attack point: 38.7/25 (Excelero/Yamaha)
Respect points per defence point: 70.6/27.1 (Excelero/Yahama)
Obviously, if you ever get to the point of owning 500 excelero's, all respect points spent on yahama's become obselete. However the chances of doing this seem incredibly high and unrealistic..
With the figures in mind, why do people rave about the excelero so much? Apart from the fact that its far and away the best vehicle to equip mafia with.. It's price to do so when compared to the Yahama is ridiculous. (Im not comparing gold vehicles).
I think an ideal number of excelero's to aim for would be around 75.