Scan from Fast Ford magazine.
One fabulous car
Specs:

Prepared by Severn Valley motorsport.

200 Block (from 4x4 Cosworth).
Balanced crank.
Arias low-compression pistons.
Coopers ring head gasket.
Stud and nut kit hold the head in place.
Turbo technics Garrett T4 with 360 degree thrust bearing.
RS500 intercooler + chargecooler.
K&N conefilter.
Twin fuel rails with 8x803 injectors.
Twin high-pressure fuel pumps.
Severn valley oil-breather system.
Avo coil-over dampers.
AP Racing 378mm front brakediscs with 6-pot calipers.
9x19 Magnesium center-bolt wheels with 245/35/19 tires.
The story: (as I have bee told it. Only edited for readability.)

It started out as a moonstone RS500 and was up for sale in a local garage for £21000. When the owner to be viewed the car he said it was over priced and a deal was struck against his 3 door and £8000 changed hands.
The new owner was not content with the standard power so he went to Severn Vally and had a mild 300bhp conversion, and that was the start of the tuning bug. He always wanted more power, so Keven said he could get more power if you leave it with us. So a full engine build was ordered and a touring car spec head with secret cams. What they were Keven would never say. When the engine was finished and the bill was paid it was said to produce over 400bhp but in our estimation it was just over 350bhp and it didn't last very long. It let go on the way to Donnington one sunday morning. The owner was not impressed and Keven said he would do it again and this time he would go for the big 500bhp conversion with eight greens, 3 bar map, same head, long studs, low comp pistons, farnden crank, wills rings (coopers rings?) the full shooting match.
After months of waiting he finally got it back and it did go well. Keven said it was the quickest RS500 ever done, so he invited all of us to Castle Coombe track day with the RS owners club. The car was paraded as his best ever. His own van was there with the Cossie engine in it so we all waited for the car to go onto the track. No problem on the first lap but on the second lap it was going slower and a trail of white smoke was trailing out of the back, it never made the 3rd lap. It let go again. This time it was the end of the engine so after all the waiting it only lasted one track day. The owner was really angry after being promised so much and only getting a few laps out of the car ,after that all of us put the pressure to get Severn Valley to get it sorted because the owner had by then spent thousands and he still wanted the car he was promised. Keven laid it on the line and said if you can wait i will put together one of the best RS500s on the road and he did, 19inch wheels with centre locks, all one piece hubs, full engine, rebuild T4 full race turbo, 6 pot brakes, coilover suspension and race seat. The car looked a proper racer. The car was took to a local rolling road tuner for a power run and it would not stop on the rollers when it got to 350bhp and 20psi of boost it would just spin the rollers and light up the tires so it was too quick for the rolling road.
Not long after that one Saturday morning he asked me to fit in some harnesses into his car as we where going to Stanford Hall on the sunday. As we set off I was in my 3 door. My son was in his car with his son and we both said to each other that we would not be racing as we had our children with us, but as we got onto the motorway, another friend of ours who was in his 3dr decided to race and the owner of the RS500 was trying to prove the point that he had the fastest RS500 and they raced all the way to Stanford Hall. My son and i just went there at our own pace and as we turned into the country lane there was a back log of traffic. Somebody coming the other way said there was a big accident and i knew straight away it was them. When we got through the car was just being pushed back onto its wheels. The owner was walking towards me his face was all cut up and bleeding. His son was bleeding from the forehead but not to serious. Both of them were taken to hospital. As for the car, it was a total wreck, it was traveling at approximately 70 mph when he went to overtake a slower car and the boost kicked in and the back let go on a wet patch of road and it went into a ditch flipped onto its nose then onto its side. There was nothing worth salvaging. It ripped of the suspension, put the pedal box into the car and snapped the steering colum. There was no bodypanels left.

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