Build-It-Yourself computer kit from Southwest Technical Products, the very first personal computer, (San Antonio) circa 1975, wirewrap motherboard and all. Was racing Porsches (911s and a 718 RSK Spyder) with Phil Ray from Datapoint at the time.
https://en.wikipedia.org/wiki/SWTPC
Here's a link with Phil Ray driving the RSK (former European Hillclimb Champ car) and 911S at the 1972 Austin TX AquaFest Supercross. He placed second in Class 1C in the RSK and 1st in Class XB in his personal 911S
http://www.spokes.org/rattle/TSSCCRattle_197209.pdf
Brenda Flowers won Class XII in her Porsche 911 at a DoubleCross event as well.
Phil and Gus Roche designed and developed the first microprocessor the 8008 at Datapoint (formerly Computer Terminal Corp CTC) so we had lots of resources. And of course also the company of super intelligent, drop-dead gorgeous TechnoWitch Brenda Flowers.
It was an incredible time with a staggeringly powerful renegade brain trust.
https://en.wikipedia.org/wiki/Datapoint
https://books.google.com/books?id=idTeAAAAQBAJ&pg=PT15&lpg=PT15&dq=phil+ray+porsche&source=bl&ots=cLz-DXRvNL&sig=RBox9UqPxndtKqp-fEtPABbymOs&hl=en&sa=X&ved=0ahUKEwi_1P7I3unVAhVGzmMKHTYQD6oQ6AEIOzAG#v=on epage&q=phil%20ray%20porsche&f=false