An entry level 1.6-litre Aura saloon is priced at E24,635, ex-works.
Thruxton Sportscars keep two cars in stock at all times, but if your order has to come ex-works you'll be quoted a reasonable 12-week lead-time.
Prices are ex-works which means another £300 for delivery, plates, etc.
The ex-works invoices show prices that are several times lower than the retail prices.
This particular car costs €26,975 ex-works, while the 1.6 litre model is listed at €23,995.
Chris Sanders, Michael Kerry and Mike Smith have all entered 1970s Ford Escorts, while Norman Grimshaw brings along the only ex-works Mini Clubman in existence.
At Silverstone the 26-year-old from Hale will be looking to improve on the third place he scored at the track last season, and unlock some of the potential in his ex-works Astra.
However, it will always have a significant fuel consumption advantage - up to 10 mpg in city and suburban driving - and, at €87,100 ex-works, it is €5,000 cheaper than its petrol sibling.
At the end of 2000 season he switched to an ex-works car.
Studies quote the increasing spread of retrofit solutions or ex-works, prompted by legislation as well as growing familiarity of end users with this technology.
The final ex-works price on the test model was €36,300.