There are racing series that reward precision, others that celebrate endurance, and a precious few that seem to have been born from a collective dare. Can-Am belonged emphatically to the last category. It was outrageous, deafening, improvised and, at its best, a glorious overreaction to the idea of regulation. Here were cars with the stance of predators and the manners of bar-room brawlers, slinging vast Chevrolet and Porsche horsepower through rear tyres as wide as dining tables. Here was a paddock in which the accepted answer to the question, “Can we do that?” was usually, “Why not?” If Formula 1 was the polished concert hall of late-1960s racing, Can-Am was the amplifier turned up until the speakers split.
The Canadian-American Challenge Cup emerged in 1966 from the fertile ground of North American sports car racing, co-sanctioned by the SCCA and the Canadian Automobile Sport Clubs. Its roots lay in the United States Road Racing Championship and in the FIA’s Group 7 category, but Can-Am took that framework and treated it less as a rulebook than as a polite suggestion. The essentials were few: two seats, enclosed wheels, basic safety compliance. Beyond that, engineers were handed an unusually long leash. Engine capacity was unrestricted, turbocharging and supercharging were permitted, aerodynamic experimentation was barely fenced in, and the result was not merely competition but escalation. In a decade intoxicated by moonshots, supersonic dreams and mechanical bravado, Can-Am felt entirely of its time.
It was also lucrative. Prize money was serious, appearance fees were attractive, and the calendar sat neatly enough alongside the Grand Prix season to lure many of the era’s finest drivers across the Atlantic. That combination of freedom and financial incentive drew constructors and privateers alike into the fray. The beauty of Can-Am was that it welcomed both genius and audacity: established names could justify expensive programmes, while dreamers with a bright idea and a big V8 could persuade themselves they belonged. Sometimes they did. More often they were swallowed whole by the pace of development, because in Can-Am standing still was another way of going backwards.
The first champion was John Surtees in a Lola T70, and that fact matters because it reminds us Can-Am did not begin with complete papaya-coloured hegemony. Lola’s T70 was one of the foundational cars of the early series: handsome, quick, comparatively orthodox and brutally effective. Eric Broadley’s design gave the new championship immediate credibility, and in 1966 Surtees used it to impose order on a scene that was still taking shape. The T70 looked like a sports-racer; before long, Can-Am would encourage machinery that looked as if it had escaped from an engineer’s fever dream. But Lola had fired the opening shot, and in doing so set the standard that everyone else would spend the next seasons trying to exceed.
Then came McLaren, and with it the period enthusiasts still describe, with only slight exaggeration, as the Bruce and Denny Show. Bruce McLaren’s M6A rewrote the competitive order in 1967, and the line of descendants that followed – M8A, M8B, M8D and M8F – turned dominance into routine. Painted in that unforgettable searing orange, the McLarens fused clean engineering with immense small-block and big-block Chevrolet power, and they were driven with hard, unsentimental brilliance by McLaren himself, Denny Hulme and later Peter Revson. Gordon Coppuck’s designs became the benchmark because they did not merely exploit Can-Am’s freedom; they organised it. Where others chased novelty for its own sake, McLaren delivered repeatable speed. The cars squatted low, put their power down cleanly, and looked as if they had been distilled to the exact shape of purpose.
Yet even during McLaren’s supremacy, Can-Am was never a one-note story. Chaparral arrived with Jim Hall’s radical aerodynamic thinking and even the astonishing fan-assisted 2J, a machine so brazen it seemed to embody the entire Can-Am creed in one unforgettable white box. Lola fought back with increasingly fierce evolutions, while private entrants bought customer McLarens and Lolas to thicken the grids with snarling, dangerous variety. The series became a rolling symposium on horsepower, downforce and nerve. Wings grew, bodywork swelled and flattened, tyres broadened, and by the early 1970s the cars had become almost cartoonishly mighty. The genius of Can-Am was that this excess somehow did not cheapen the spectacle; it elevated it.
Ferrari’s involvement was brief enough to feel like an exotic subplot, but it added lustre all the same. Maranello could hardly ignore a championship that offered rich rewards and transatlantic prestige, and in 1967 the Ferrari 612 Can-Am arrived as a broad-shouldered interpretation of Group 7 freedom. Driven by Chris Amon, the 612 had presence in abundance and the sort of mechanical pedigree that made onlookers instinctively lean closer. But Can-Am was not a place where romantic reputation counted for much. Ferrari’s effort never quite became a sustained campaign in the way McLaren’s or later Porsche’s did, and the 612 remains one of those tantalising what-ifs: a reminder that even the grandest names could be left gasping in a category where adaptation mattered more than heritage.
If McLaren perfected naturally aspirated authority, Porsche detonated the next phase. Its early Can-Am forays hinted at menace, but the real revolution came with the Penske-run 917/10 and then the almost absurdly potent 917/30. Turbocharging was not new to racing, but in Can-Am it found a playground vast enough to reveal its most intoxicating possibilities. Mark Donohue, analytical and fearless, became the ideal interpreter of this new weaponry. With the 917/10 in 1972 and the 917/30 in 1973, Porsche did not simply win – it overwhelmed. Power figures became the stuff of legend, climbing beyond 1000bhp and, in qualifying trim, towards the outer edge of credibility. The 917/30 in particular remains one of the ultimate expressions of motorsport excess: wide, low, devastatingly fast and possessed of such savage acceleration that it seemed to bend the horizon toward itself.
But Porsche’s supremacy came at a cost to the competitive texture of the series. Can-Am had often featured dominant teams, yet the sheer force of the turbocharged 917s pushed rivals toward despair. Costs spiralled. To remain relevant, competitors had to find ever larger budgets, ever cleverer solutions and ever stronger nerves. This was the paradox at the heart of Can-Am: the freedom that made it so intoxicating also carried the seed of its own undoing. When development is almost unrestricted, the successful become frighteningly successful, and the merely ambitious find themselves chasing a moving target through a fog of burnt rubber and invoices.
And then, in the final flowering of the original era, came Shadow. If the name sounds theatrical, the cars were more so still. Don Nichols’s outfit had arrived in Can-Am with the sort of lateral thinking that could either transform the sport or embarrass itself spectacularly. Early Shadows looked radical even by the standards of a radical series, but by 1974 the DN4 had matured into a genuine title-winner. Jackie Oliver drove it to the championship, giving Shadow a place in the Can-Am roll of honour just as the curtain was beginning to fall. There was something fitting about that. A series built on imagination and audacity deserved to end not with orthodoxy but with a machine from a team that seemed to revel in being different.
By then, however, the world around Can-Am had changed. The oil crisis, swelling costs and a waning competitive balance all conspired against the original championship, which ended after the 1974 season. There would be later revivals under the same name, but the first Can-Am – the one people mean when they say it with a certain faraway expression – belonged to those nine startling years from 1966 to 1974. It was never merely about lap times, nor even about the celebrated drivers who passed through it. It was about possibility. Can-Am represented a rare moment when professional motorsport allowed engineers to think like hot-rodders and dreamers while still playing for high stakes.
That is why the series continues to cast such a long shadow over historic racing and over the imagination of anyone who has heard a Can-Am car clear its throat. The legacy is sensory as much as statistical. These cars do not simply pass; they assault the air. A McLaren M8 on full song sounds like architecture collapsing in rhythm. A Porsche 917/30 on boost feels less like a car than an industrial event. Even the silhouettes have become part of racing folklore: the bluff nose of a Lola, the menacing hunch of a Shadow, the impossible width of the Porsche, all of them carrying the memory of a time when the brief was not to fit a formula but to stretch one until it screamed.
Which helps explain why the Can-Am celebration at the 81st Goodwood Members’ Meeting in April 2024 struck such a chord. Goodwood gathered an extraordinary collection of Can-Am machinery from the original 1966-74 period and unleashed it around the old circuit in what was billed, entirely plausibly, as one of the loudest demonstrations ever held there. McLarens, Lolas, Porsches and Shadows were all present, not as static museum pieces but as living, snarling artefacts of a lost philosophy. To see them moving through Madgwick and Lavant was to be reminded that Can-Am is best understood not in photographs or chassis records but in motion – squat under acceleration, twitching under power, seemingly too violent for the available tarmac.
In the end, that is Can-Am’s enduring appeal. It was not tidy enough to be noble in the conventional sense, nor stable enough to last, yet it captured something essential about why racing matters. It showed what happens when brilliant people are given room to be reckless in pursuit of speed. It produced dynasties in orange, titans in red, silver and black, and monsters with turbochargers big enough to frighten common sense. From Lola’s opening salvo to McLaren’s command, from Ferrari’s intriguing cameo to Porsche’s terrifying crescendo and Shadow’s final, glorious punctuation mark, Can-Am remains motorsport’s most vivid answer to the question of what happens when imagination outruns restraint. At Goodwood, as those old giants thundered once more into the Sussex air, it was clear that the answer still resonates.
