Let me start with a quote I found on the forum.
There was a MK3 Striker. It had Chevette front suspension and a GRP tunnel. We did it to reduce the cost.
The factory did build a single MK3. It was yellow and was initially fitted with a Chamberlain built 1300 x-flow. We later fitted a 2.0 Pinto and sold it. The interesting thing about this car is that it was initially fitted with lower A frame at the rear like Caterham. However I converted it back to the twin watts linkages we know and love!
If this is the factory car it will have 2 unused brackets on lower tube of the rear bulkhead that the A frame once attached to. However I doubt this is the works car. I made a custom pedal box for the car that used Chevette pedals. The car in question seems to have an early removable pedal box using Escort pedals.
The Striker MK4 was essentially a full bodied Striker Mk3.
All the best,
Maybe I have the unicorn works MK3 Striker over here in Holland? According to a previous owner, it was built by the factory in 1988 and it has been yellow all of it's life. On the registration it is even called Striker MKIII. However, you wouldn't recognize it today, because it was rebuilt twice, the second time in 2005 after a crash that destroyed the front half of the car. It received lots of new parts, for example in-board front suspension with (what look to me like) Sierra uprights. It also got a RAW body, some digital gauges and in recent years Dominator headlights, Team Dynamics Pro-Race 15 inch wheels... Oh, and quite significant: it went from a 4AGE 16V to a 4AGE 20V Silver Top with modified sump, Omex 600 and a T50 box.
What doesn't match the description by pkuzan is that there wasn't a 2.0 Pinto in it, but a 1.6 Kent/X-Flow when it came to Holland in 1998. I haven't discovered anything that looks like an A-frame bracket, but I haven't looked very closely. It supposedly has a 1971 Ford Capri 1.3GT live axle, which also donated it's year of registration, so I don't have to pay road tax. I did find an unused bracket though at the very end of the frame, but that is probably for something else?
I just bought it so have barely driven it yet with this weather, but I hope to go out tomorrow. I'm 188 cm, 6"2, so I had to remove the seats and I sit on a pillow to fit inside!