It would appear that i probably have found the answer to my own question above - Willy Jeep (6 speed manual gearbox; 3 high, 3 low and reverse). Therefore i find it difficult to understand how such a vehicle (and Penniston) could have found problems dealing with 'rocky terrain (and having to)abandon the vehicle and proceed on foot' (Bruni 2001, p173), as opposed to Burrough's statement 'We stopped the truck (Cabansaq refers to it as a 'Jeep' p192) where the road stopped and went on foot. We crossed a small open field (which can only be Capel green/Larry Warren's field?) that led into the trees where the lights were coming from' (p164).
Halt later describes (p213) making 'his way to the initial landing site, which he explained was difficult to find in the dark and apparently took some time before they managed to reach it...Halt spotted a glowing red object...but at one point the light startled them as it turned and headed towards them before receding and moving back again through the forest...they pursued the light as it moved in the direction of the adjacent farmer's field...they neared the fence line, which seperated the forest from the field.' Page 271 'We continued to walk towards the left of the field, as witness Colonel Halt claims he did. P272 'He (Halt) explained that he was on the far left-hand side of the farmer's field, near a farmhouse.'
For anyone going on the UFO trail and would like to see an alternative, and, in my opinion very probable landing site; as per Bruni (2001) follow route 8, take 2nd path on left and follow it to the end (which leads onto what was route 10) and directly in front of you in the adjacent tree line is the area to look. This would appear to be the area Vince Thurkettle (and his six week old radioactive rabbit scrapings

showed to Ms Bruni, and in my logic would tie into that as described above. Penniston's claimed landing site to my reckoning would have been (and i may be wrong) too far away to hear animals going beserk in the farmer's field. Unfortunately, to date, polite but probing questions to the forestry commission as to the sources that led to the placements of their landing sites have been met with apparent silence. Good luck all with your own studies and investigations because it is only through this that one day, and hopefully in my life time, we may get the truth as to what did really happen in Rendlesham forest back in 1980.