hp @ 10,500 rpm
lbs per hp
208.3 hp per liter
under 5 seconds
under 2.5 seconds
Press Release) As the world’s first road car to exceed
1,000bhp-per-tonne the Freestream T1 is perhaps bound to grab the
headlines. Yet the car couldn’t be further removed from the ‘no
expense spared high technology approach’ that might be imagined.
Indeed the same key issues facing mainstream car designers – such as
active and passive safety, vehicle performance as well as weight,
complexity and cost – were all addressed at a fundamental level when
the Freestream T1 was conceived and was a primary inspiration for
"To demonstrate our understanding of these fundamental vehicle
engineering issues we set out to design an optimum package for
delivering 1,000bhp-per-tonne," says Freestream co-founder Ben
Scott-Geddes. "Interestingly, the sweet spot on the curve that
satisfies many of these issues is 500 horsepower in a vehicle with a
mass of 500kg."
"You can deliver higher engine outputs up to 1,000bhp and beyond,"
explains fellow director Graham Halstead, "but that means more
weight, which adds significant cost and complexity to the car.
Conversely, a 300bhp-per-300kg approach can severely compromise
crash worthiness because of insufficient structural mass. An
extremely lightweight approach can cause costs to spiral through the
use of exotic materials. And less horsepower means a restricted top
speed and aerodynamic performance."
"Having arrived at the optimum power-to-weight ratio a major
engineering challenge was to design a powertrain of around 100kg;
without which it would have been impossible to meet our overall
vehicle design requirements," says Scott-Geddes.
Halstead and Scott-Geddes share an impressive track record and
formed part of the small engineering team that worked on the McLaren
F1 and Mercedes-McLaren SLR. In terms of sheer vehicle performance
their vision for the Freestream T1 was an ultra-lightweight car
capable of reaching 100mph in five seconds, with a top speed
exceeding 200mph depending on the adjustable aerodynamic set-up,
with enough downforce to corner at more than 3g – about the same as
a Le Mans prototype – and the ability to stop on the proverbial
However, in terms of addressing fundamental automotive industry
issues – such as safety and CO2 emissions for example – the car will
showcase the consultancy’s core credentials. "Concept vehicles are
ten-a-penny and this is more than a one-off prototype," says Scott-Geddes.
"The only way to truly convince car makers that we have the
experience and skills to design and engineer a safe, reliable,
cost-efficient albeit high-performance car is to actually design and
build one. We then have something to discuss."
"In addition, there is a global market for an exclusive ultra-high
performance track car that can also be used on the road; so in
effect we’ve found an exciting way of funding our demonstrator,"
added Halstead. "Customers for the car will either be private
individuals with a passion for high performance sports cars or
corporate clients requiring an affordable yet prestigious track car
for the fast growing market of hospitality race experience events.
Meanwhile, we look forward to working closely with automotive
clients to help tackle their design engineering issues."
The Freestream T1 powertrain comprises a bespoke 2.4-litre
supercharged V8 aluminium engine with a mass of approximately 85kg.
Similarly, the 6-speed sequential transmission with magnesium casing
is a bespoke design with a mass of approximately 30kg. The carbon/aluminium
honeycomb monocoque features a separate composite crash structure at
the front, while the rear sub-frame specifies aerospace grade steel.
The non carbon-fibre steel suspension, for example, illustrates the
company’s ability to specify structural materials that can deliver
the maximum performance at the lowest possible cost. Overall, the
£150,000 price tag underlines the company’s ability to design and
build an exclusive car at a relatively low price despite its ultra