Screaming engines, flying mud and massive surges of adrenalin - it is just another day on the farm for father and son team Chris and Jonnie Wigmore.

The pair run the London Rally School and Banzai Action Sports businesses from their home at Pool Farm, Stratton Audley, near Bicester.

Both trained rally drivers, they offer expert tuition in a variety of machines from go karts to a fully-fledged rally-equipped Subaru to anyone willing to pay for the privilege.

But their core market and a rapidly developing arm of the business is for corporate events. They have converted the barns of the original farm to become conference suites with the aim of attracting companies who may want to hold a conference in the morning and then let off steam in the afternoon.

Land attached to the farm has been turned into a purpose-built series of special stages' which offer a rally-style challenge against which novice drivers can pit their wits.

The London Rally School - so called because it is targeting firms in the capital to head north for the day - has five rally cars, three Ford Escort RS2000s and two Subaru Impreza WRX STis.

While the Escorts are are almost historic, dating back to the late 1970s, Chris Wigmore says demand for a ride in the rear wheel drive machines is high. Mr Wigmore, 47, said: "Customers love them - modern cars are just not as enjoyable and people actually request to drive them.

"They are harder to maintain but we rebuild them every two or three years and there is a huge cottage industry in Escort parts."

And such is the pedigree of the Escorts that they are still competitive in club rallying against smaller cars and also take part in historic rallies against contemporary vehicles.

It is not just people coming for a one-off visit - the rally school is in fact just that for a growing clientelle. It offers training for would-be rally drivers keen to break into motorsport, but lacking the skills and equipment.

Mr Wigmore said several clients are now making a name for themselves on the local and even national circuit. But he added: "The majority of people are not coming to be rally drivers, but to enjoy the experience.

"It is growing busier all the time - a lot of people come after work and then enjoy it so much they bring their clients."

And there have also been some unexpected guests with Hollywood actor Morgan Freeman dropping in one afternoon during a break in filming in London.

In corporate terms the likes of BT and Microsoft have also signed up.

The London Rally School was originally set up about 20 years ago by Steve Whiteford at Pool Farm. Steve was a rally driver, but the farming side of his business started to become more prominent and he eventually moved to Scotland, leaving the rally school to Chris Wigmore.

Mr Wigmore previously worked in sales for Hartford Motors in Oxford and at the Peugeot dealership in Faringdon but had always competed in rally events.

He has since developed the business significantly and has spent £2m in the last five years on converting the barns and extending the range of activities and vehicles on offer.

His passion for rallying was caught by son Jonathan who started competing at the age of 17 and, in 2003, became the Ford Rallye Sport Ka champion. Two years later he claimed the Peugeot 206 Super Cup championship with Witney-based co-driver Robbie Durant and he continues to compete at a high level.

While the business is primarily a family concern with mother Cathy helping out with the conferences, bookings and administration, the Wigmores can call on up to eight driving instructors to take charge of events.

Like Jonnie, all of them also have competition licences and the cars at the school are still used in events.

The rally school side of the business blends seamlessly into Banzai which offers a broader range of activities - from quad bike trekking and off road rallying to archery. Themed events are a speciality and vouchers are also sold as personal and corporate gifts.

Prices range from about £75 to £295 per person, the latter including a full day on the gravel stage with both types of rally car.

Running a business such as this is not cheap - a competition clutch for a Subaru can cost £10,000 and then there is general maintenance and regular items such as tyres. But for the Wigmores the advantages far outweigh any downside.

Chris said: "People always go away happy and they also learn how to be a far better driver."