Shadow DN4
{{Short description|American sports prototype racing cars}}
{{Infobox racing car
| Car_name = Shadow DN4
| Image = 1974 UOP Shadow DN4 front.jpg
| Constructor = Shadow
| Designer = Tony Southgate
| Team = Phoenix Racing Organizations
| Drivers = {{flagicon|GBR}} Jackie Oliver
{{flagicon|USA}} George Follmer
| Technical ref =
| Chassis = Aluminum fiberglass monocoque
| Front suspension = Double wishbone, Coil springs over Damper, Anti-roll bar
| Rear suspension = Twin lower links, Single upper links, Twin trailing-arms, Coil springs over Shock absorbers, Anti-roll bar
| Length = {{convert|180|in|cm|1|abbr=on}}
| Width = {{convert|80|in|cm|1|abbr=on}}
| Height =
| Wheelbase = {{convert|105|in|mm|1|abbr=on}}
| Track =
| Engine name = Chevrolet
| Capacity = {{convert|7439-8112|cc|cuin|0|abbr=on}}
| Configuration = V8 engine
| Turbo/NA = naturally-aspirated
| Engine position = mid-engined
| Power = {{cvt|745-850|hp|kW}}
| Type = Hewland LG-500 4-speed manual
| Differential =
| Weight = {{convert|1860|lb|kg|1|abbr=on}}
| Fuel =
| Lubricants =
| Tyres = Firestone
| Debut = 1974 Can-Am Mosport
| Races = 5
| Wins = 4
| Cons_champ = 1: Shadow
| Drivers_champ = 1: 1974 Can-Am (Jackie Oliver)
| Teams_champ = 1: (Phoenix Racing Organizations)
| Predecessor = Shadow DN2
}}
The Shadow DN4 is a sports prototype race car, built to Group 7 racing specifications, for competition in the Can-Am series, and later the World Sportscar Championship, in 1974 and 1976. Jackie Oliver successfully clinched 1974 Can-Am Championship season in this car, winning 4 out of the 5 races that season.{{cite web | url=https://www.supercars.net/blog/1974-shadow-dn4/ | title=1974 Shadow DN4 | Motorsport & Racing | date=22 April 2016 }}{{cite web | url=https://www.ultimatecarpage.com/spec/465/Shadow-DN4-Chevrolet.html | title=1974 Shadow DN4 Chevrolet Specifications }}{{cite web | url=https://www.hagerty.com/media/news/championship-winning-dn4-can-am-shadow-flips-at-road-america-reunion/ | title=Championship-winning DN4 Can Am Shadow flips at Road America reunion | date=27 July 2020 }}{{cite web | url=https://sportscardigest.com/shadow-dn4/ | title=Shadow DN4 | date=13 November 2010 }}{{cite web | url=https://www.conceptcarz.com/vehicle/z13073/shadow-dn4.aspx | title=1974 Shadow DN4 }}{{cite web | url=https://bangshift.com/bangshiftapex/ride-on-the-back-of-the-restored-800hp-uop-1974-shadow-dn4-can-am-car-at-laguna-seca/ | title=1974 Shadow DN4 | date=6 July 2019 }}{{cite web | url=https://vintageracecar.com/machiavellis-shadow-1974-shadow-dn4-1p/ | title=Machiavelli's Shadow – 1974 Shadow DN4-1P | date=June 2016 }}