It is the fith of six RA107/SA08A chassis that were made, it is the last official RA107 as SA08A was the 6th chassis and was used as Hondas test car at the end of the 2007 season and then given to Super Aguri.
It has done 16 rounds of two championship seasons, and that is a well used chassis.
Doing that distance more or less correlates as a chassis should be able to do 15,000km to 16,000km before it ideally shouldnt be used again for races. It probably had two or three more races in it. It more or less makes sence that was as the RA106 that was used by AD in 2006 as the 3rd drivers car for Friday practice was the same car he had for the 2007 season with Super Aguri and that did 11,500 in 2007 and 4,500km in 2006.
Heres your chassis engine history:
2007 Season (Rubens Barrichello)
Engine 04: 1,098.838 (CAN, USA)
Engine 05: 1,581.252 (FRA, GBR)
Engine 06: 1,343.589 (EUR, HUN)
Engine 07: 138.656 (TUR) [Engine change post TUR Quali - http://www.gpupdate.net/en/f1-news/1642 ... a-chances/
Engine 08: 1,048.620 (TUR, ITA)
Engine 09: 1,447.040 (BEL, JAP)
Engine 10: 1,399.989 (CHI, BRA)
2008 Season (Anthony Davidson)
Engine 01: 871.977 (AUS, MAL)
Engine 02: 951.371 (BAH, ESP)
2008 Pre Season Testing:
Test 1: Circuito Permanente de Jerez 9-17 January 2008
James Rossiter - 10 Laps - 44.280Km
Test 7: Circuito Permanente de Jerez 11 - 14 February 2008
Takuma Sato - 191 Laps - 845.748
Anthony Davidson - 103 Laps - 456.084
I havnt got into doing 2007s testing archive at present, but i can only asume that Chassis 05 did arround 1,065Km there.
I also thinking there could have been 496km done by Wurz and Takashi Kogure in it as well as Honda used a RA107 to verify things for the RA108 in pre season testing in 2008. However this could have been Chassis 06 that did this distance before being passed to Super Aguri.