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Bugatti has broken the 300mph barrier

topgear.com

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Re: Bugatti has broken the 300mph barrier

#151

Post by LandR »

riffraff wrote: post #78
awesomepeter wrote: post #51

Earlier quoted context omitted.

Going around 160km/h on highways in Europe is pretty common, also higher speeds for eg. in Germany

> Going around 160km/h on highways in Europe is pretty common is it? That is 20-50km/h above the limit in all european countries other than Germany. There are people going that speed, but in my experience across a few countries 99% of the traffic does not go that much above the limit. Sources: https://ec.europa.eu/transport/road_safety/specialist/knowle... . https://autotraveler.ru/en/spravka/max-speed-limits-in-euro…

I remember in my parents car a few years back, I was doing around an indicated 220km/h on a motorway in the UK. There was still things going faster than me.

This was on a relatively quiet, well sighted motorway in good conditions. But there were other people clearly in a hurry!

Re: Bugatti has broken the 300mph barrier

#152

Post by hvidgaard »

ukd1 wrote: post #149
hvidgaard wrote: post #145

Earlier quoted context omitted.

After a second or two of spooling the turbo yes - but it's not equivalent to an EV which has instant torque.

You can brake-boost, which negates most of the lag in a turbo'd car. Still not as flat curve, but reduces / kills the lag.

For general "racing" you can apply a number of tricks, including "pumping" the gas during cornering, clutch in more gradually, brake boosting - all keeping the turbo spooled. But I was specifically thinking about running at a fixed speed between 1500-2000 rpm and then mash the gas because you want acceleration - think of overtaking. An EV is vastly superior in this regard because you just press the throttle and off you go.

Re: Bugatti has broken the 300mph barrier

#153

Post by hazeii »

erikig wrote: post #73
MrGilbert wrote: post #48

It's pretty impressive. In terms of a daily driver, I think the fun comes from the acceleration, and thus the torque a car can produce. My daily driver is a Mazda 3 / Mazda Axela, which comes with 200 Newtonmeter torque at 6400 rpm. It's ok, it's fun, but yeah. So the other day I drove a 2013 Nissan Leaf (BEV), which gives you ~250 Nm torque right at the beginning. This was so much fun to drive. So for me, a car does…

I love acceleration but there’s also jerk - the rate at which acceleration builds up. It is is also a factor of the torque curve.

Big-engined high performance sportsbikes really demonstrate this well. Rolling on the throttle in a high gear at a lowish speed results in a ride up the torque curve; the effect is the faster you get the harder the acceleration becomes. It's an exciting demonstration of positive-feedback.

Re: Bugatti has broken the 300mph barrier

#154

Post by blattimwind »

arethuza wrote: post #136
2sk21 wrote: post #85

Earlier quoted context omitted.

perhaps chassis and suspension may benefit but with rapid electrification impending in the future, even that is of dubious value. A Bugatti is like a piece of jewelry in my opinion - beautiful but of no practical value.

Electric cars still have chassis and suspension?

No, electric cars are completely different from regular cars. You really have to approach their design from a software-oriented perspective.

Re: Bugatti has broken the 300mph barrier

#155

Post by fyfy18 »

ayodio wrote: post #82
awesomepeter wrote: post #51

Earlier quoted context omitted.

Going around 160km/h on highways in Europe is pretty common, also higher speeds for eg. in Germany

No it is not 130 is the general limit. http://www.unecartedumonde.fr/wp-content/uploads/2014/05/car...

The speed limit is typically 130km/h, but depending on the country it may be pretty much ignored.

Re: Bugatti has broken the 300mph barrier

#156

Post by ollie87 »

arethuza wrote: post #146
ollie87 wrote: post #21

Earlier quoted context omitted.

Mmmmhmmm, don't really see it as an issue here given that not many folks are going to be buying a £2.5m hypercar to drive at three times the speedlimit to work on a Monday morning.

I remember reading about a German chap who used a McLaren F1 for a commute on an unlimited section of the autobahn - his average speed was so high McLaren contacted him to check that everything was OK. The F1, in pre-internet days, literally phoned home to McLaren with telemetry. Edit: I think you had to physically plug it into a phone socket... in case anyone was being put off buying an F1 for security/privacy reaso…

Yeah the F1 had a modem that would phone home and give diagnostic and telemetry data.

Re: Bugatti has broken the 300mph barrier

#157

Post by axilmar »

mosselman wrote: post #32
axilmar wrote: post #28

It's too bad that the state of roads in most countries is aweful and can't support anything approaching high speeds, let alone this insane 490 km/h.

Yes it is such a shame that the roads are such that when I am on the road with my family some crazy daredevil can't drive 490km/h near us. The roads are for getting from A to B, not racing. If you want to go 490km/h, go to a race track.

Wouldn't you like to reach your destination in a much shorter time than usual? I certainly would.

Re: Bugatti has broken the 300mph barrier

#158

Post by hazeii »

bartread wrote: post #79
MrGilbert wrote: post #48

It's pretty impressive. In terms of a daily driver, I think the fun comes from the acceleration, and thus the torque a car can produce. My daily driver is a Mazda 3 / Mazda Axela, which comes with 200 Newtonmeter torque at 6400 rpm. It's ok, it's fun, but yeah. So the other day I drove a 2013 Nissan Leaf (BEV), which gives you ~250 Nm torque right at the beginning. This was so much fun to drive. So for me, a car does…

I ride bikes and from a practical standpoint, along with small size and manoeuvrability, the acceleration (a result of torque) is one of the most useful attributes. Much moreso than top speed, or even speeds significantly in excess of the posted limits. Bikes don't tend to have high torque in general, but their light weight and gearing are designed to maximise what torque they do produce. This means there are quite a…

Bikes like Harleys and BMW twins have plenty of torque, where bikes like Kawasaki Ninja's major on power (peak torque at high revs). Hence Harleys and BMW's are first off the line at the lights (no need to build revs) but the Ninja's will come steaming past seconds later.

There are some fun youtube videos demoing bike performance, e.g. Ninja H2's doing 0-250MPH in 26s [0], outdragging a Bugatti [1] and outpacing an F1 car and an F16 fighter at the same time.

[0] https://www.youtube.com/watch?v=6_n7ru1e-rg [1] https://www.youtube.com/watch?v=gi5_GQ78wM8 [2] https://www.youtube.com/watch?v=_ESq00zi7bU

Re: Bugatti has broken the 300mph barrier

#159

Post by leeoniya »

ChuckNorris89 wrote: post #144
killjoywashere wrote: post #96

Earlier quoted context omitted.

Top Gear actually did a road test of a Tesla S vs an Aston Martin starting at 30 MPH and the Tesla dusted the Aston Martin. Considering electric motors start with max torque, and the stats that are easily googlable, the Tesla would have no problem with the Bugatti. Never mind the Tesla is smaller, has a lower center of gravity, and costs 15x less and has more range. And it's probably worth noting that the Tesla is al…

Apples and oranges. Stats alone are pretty meaningless when comparing what's basically a mass produced commuter car that had to meet a price point with a limited production luxury super car built without budget constraints. The Bugattis and Aston Martins alike are engineered to lap tracks or do speed runs over and over again in comfort and luxury without any reduction in acceleration or braking performance while Tesl…

> The Bugattis and Aston Martins alike are engineered to lap tracks or do speed runs over and over again in comfort and luxury without any reduction in acceleration or braking performance while Tesla's drive-train reaches its thermal limits really fast if you push it and reduces its performance accordingly.

a problem the Porsche Taycan solves (to some extent).

https://m.youtube.com/watch?v=TP9kokeyxGU

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