I don't know why anyone hasn't brought this up(probably because it's forgotten in the lore of F1), but I consider what happened between Arrows and Shadow in 1977-78 worse than what McLaren did to Ferrari.
It also ticks me off that Arrows got of very lightly compared to McLaren, as the FIA really didn't do anything to punish Arrows, as they were accused fo basically copying Shadow's car for the '78 season.
He's how I told of this at the VW Vortex open wheel racing forum:
(start of post)
Speaking of stealing someone else's car design info to build their own, the McLaren vs Ferrari deal isn't new. One of the biggest(but largely forgotten) corporate spying/screw jobs in F1 happened in 1978 between Shadow Cars Inc. and the then newly formed Arrows F1 team. It was basically like McLaren and Ferrari, but the FIA didn't really get involved. Here's the info on what happened and why the FIA didn't get involved like the did between Ferrari and McLaren.
Shadow vs Arrows Saga:
Why didn't the FIA get involved in the Shadow Cars vs Arrows F1 deal in 1978, where Shadow claimed that Arrows stole Shadow's DN9 F1 car design and used it to produce their FA1? Well, let me give a possible answer to my own question.
Backstory:
After the death of Tom Pryce in the '77 South Afican Grand Prix, and Pryce's replacement Alan Jones bolting to Williams for the '78 season, several members of the Shadow team's management(Jackie Oliver, Alan Rees, Tony Southgate, Dave Wass, and Franco Ambrosio, owner of Shadow's primariy sponsor Ambrosio Insurances), tried to buy majoiry interst from Shadow founder/owner Don Nichols.
Sound familiar: Just like Dale Earnhardt Jr and his stepmother Threasa. Dale Jr. wanted majority interest in DEI instead of his minority owner/driver role. Well, just like when Ms. Earnhardt and Jr couldn't work out a deal and Jr left for Hendrick motorsports, the Shadow managers/sponsor decided to start their own team.
The Major Issue(in the context on McLaren vs Ferrari):
Arrows, instead of buying customer cars, took the route of Shadow Cars and decided to build their own cars. Hiring former Shadow designer Tony Southgate was hoped to lead to decent cars for the team, as with Shadow. But with time being so short, Southgate apparently based the FA1 off of the not yet entirely completed DN9. Of course, when one considers that the DN9 was no where near as succesful as the '77 DN8(which was used to win Shadow's only major F1 win, at Austria, though Pryce won the '75 Race of Champions non-points race in the new for '75 DN5-another Southgate design) then the FA1, was a piece of crap, and thus, why did Shadow file a complaint with a British civil court?
Well, Don Nichols, being Shadow's owner, owned part or all of most of the copyrights related to the design of his cars(the DN designation being Nichols' initials). Of course, that being said, Don wasn't very happy to say the least that he found out that the FA1 and DN9 looked very similar, or maybe worse, that the FA1 was an inferior knockoff.
The End Result:
The FIA probably didn't want to get involved, as Shadow was fading into mid-field obscurity, and Arrows was an upstart team that much wasn't expected of. However, Shadow decided that what the FIA wouldn't try to fix, they'd do themselves in British civil court.
Shadow tried successfuly to get an injuction and also tried to sue Arrows for copyright infringement. The court brokered a settlement where Shadow would drop the lawsuit if Arrows modified the FA1 to less resemble the DN9. As a result, as they knew(dispite copyrights regarding car designs being hard to prove) they'd probably loose the case, they redesigned the FA1, and the A1 ran the second half of the '78 season, but it was little more successful than the FA1, or the DN9 for that matter. And as the DN9 wasn't particulary successful, you can see how bad Arrows did with their FA1/A1 copies.
So in the end, this was a pretty big freakin' screw job that Arrows pulled on Shadow. In the end, Shadow still got screwed, as they still lost their sponsor, and much of their management. Granted, Shadow probably wasn't gonna stick it out for very long due to the politics of the sport. But they had to scrap together sponsorship(from Villager cigars and Tabatip cigars/cigarettes), and had to rely on pay drivers(Elio de Angelis and Jan Lammers) in '79. De Angelis and Lammers leaving, as well as the DN9B being obsolete basically put Shadow out of business in mid 1980, even after Nichols sold half the team to Teddy Yip's Theodore operation early in the season.
Is what McLaren did a screw job. Yes, pretty much, if they actually did use info to deveolop their own cars. But Ferrari has pulled or tried to pull screw overs too. Like the illegal moving floor pan on the cars at Austrialia, which is another reason that Ferrari is ticked. But everyone in racing, be it F1, NASCAR, ALMS, Grand Am, etc., the theory is if you're not bending rules or cheating, you're not trying. But what McLaren is accused of pales in comparison to what happended in 1978(end post).
So you see, this crap(or even worse) has happened before.