A very simple view of gross profit and sales numbers suggests they make c£20k GP per car. So another 100 car sales might deliver £2m more contribution. If the c£10m exceptional costs are really exceptional and higher volumes can generate some improvements to production costs then getting volumes up to 1,000/year and not having recurring levels of exceptional costs might suggest getting to a 10% net margin might be possible on a sunny day with a following wind. Of course that depends on quality being what it needs to be etc etc as noted in previous posts...whatever I hope they survive...