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== Specifications ==
Manufacturer specifications Spéirling PURE<ref>{{Cite web |title=Speirling |url=https://mcmurtry.com/speirling-pure/ |access-date=2024-07-10 |website=McMurtry Automotive}}</ref>:
* Peak power output: 1000 bph (745kW)
* Top speed: {{Convert|298.0|km/h|mph|abbr=unit|0|order=flip}}
* 0-60 mph: 1.55 sec
* 1/4 mile: 8 sec
* Weight: 1200 Kg
* Battery capacity: 100 kWh
* Rear wheel drive
Estimated driving time on a race track at a [[GT4 European Series|GT4]] pace is about 25 minutes.<ref name="I broke"/>
The car has [[rear-wheel drive]] using two electric motors placed inside a specially designed "e-axle",<ref name=":0" /> and uses carbon brakes. The monocoque has room for a driver {{Convert|150 to 200|cm|ft|abbr=unit}} tall. The battery is integrated into a separate safety cell inside the monocoque.
=== Active downforce ===
A special design aspect of the car is its active [[downforce]] system without the use of large splitters or wings, by means of twin fans which provide an extra {{Convert|2000|kg|lb|abbr=unit|round=50}} of downforce from a standstill. This allows the car to corner at a [[G-force]] of more than 3g<ref>{{Cite web |title=Speirling |url=https://mcmurtry.com/speirling-pure/ |access-date=2024-07-10 |website=McMurtry Automotive}}</ref>. When the fans are at full speed, they emit about 120 [[Decibel|dB]] of noise, comparable to that of a [[jet engine]] at full thrust.<ref>{{Cite web |title=Speirling |url=https://mcmurtry.com/speirling/ |access-date=2022-06-27 |website=McMurtry Automotive}}</ref><ref>{{Cite web |last=Oliva |first=Jacob |date=19 June 2022 |title=Adorably Short Electric Car Aims For 0 To 60 MPH In 1.5 Seconds |url=https://www.motor1.com/news/593012/mcmurtry-fan-car-goodwood-record/ |access-date=2022-06-27 |work=Motor1}}</ref>
The use of fans powered by separate motors to provide downforce was first conceived of by [[Jim Hall (racing driver)|Jim Hall]] for the [[Chaparral Cars#2J|Chaparral 2J]], a [[Can-Am]] car he designed, constructed and raced in 1970. It was banned at the end of the 1970 Can-Am series. A downforce fan system was also used in the [[Brabham BT46|Brabham BT46B]] [[Formula One car]], which was designed by [[Gordon Murray]]. The BT46B raced at the beginning of the 1978 season to great effect before a rule change was made under pressure from other race teams, resulting in a ban on movable aerodynamic surfaces.<ref>{{Cite web |last= |first= |date=16 June 2022 |title=McMurtry target Goodwood FoS victory with fan car competing in motorsport for the first time since 1978. |url=https://mcmurtry.com/mcmurtry-target-goodwood-fos-victory-with-fan-car-competing-in-motorsport-for-the-first-time-since-1978/ |access-date=2022-06-27 |website=McMurtry Automotive |language=en-US}}</ref><ref>{{Cite web |last=Edelstein |first=Stephen |date=9 July 2021 |title=British startup McMurtry unveils electric track car with downforce-generating fan |url=https://www.motorauthority.com/news/1132852_british-startup-mcmurtry-unveils-electric-track-car-with-downforce-generating-fan |access-date=2022-06-27 |website=Motor Authority |language=en}}</ref>
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