My driving life is now changed forever…

Posted on April 3rd, 2009 in AutoSpeed,Driving Emotion,Economy,electric,Electric vehicles,Global Warming,Opinion by Julian Edgar

I feel like one of the first pilots of jet-powered aircraft. They immediately knew that they were flying the future: there could be no going back to pistons and propellers.

Today I drove the car that, for me, spells the end of the piston engine for performance cars.

The car was the all-electric Tesla, and its performance – and the way it achieved that performance – was just so extraordinary that I am almost lost for words. That a start-up car company has created such a vehicle is simply unprecedented in the last century of automotive development.

For the Tesla is not just a sports car with incredible performance (0-100 km/h in the fours) but also a car that redefines driveability. Simply, it has the best throttle control of any car I have ever driven.

Trickle around a carpark at 1000 (electric) revs and the car drives like it has a maximum of just a few kilowatts available. It’s the pussy cat to end all pussy cats: Grandma could drive it with nary a concern in the world. Put your foot down a little and the car seamlessly accelerates: heavy urban traffic, just perfect.

But select an empty stretch of bitumen and mash your foot to the floor and expletives just stream from your mouth as the car launches forward with an unbelievable, seamless and simply immensely strong thrust.

There are no slipping clutches, no flaring torque converters, no revving engines, no gear-changes – just a swishing vacuum-cleaner-on-steroids noise that sweeps you towards the horizon. The acceleration off the line and up to 100 km/h or so is just mind-boggling – especially as it’s accompanied by such undemonstrative effort. The car will do it again and again and again, all with the same phenomenal ease that makes this the winner of any traffic lights grand prix you’re ever likely to meet.

And it’s not just off the line. Want to quickly swap lanes? Just think about it and it’s accomplished. 

In fact drive the car hard and you start assuming that this is the only mode – outright performance. But then enter that carpark, or keep station with other traffic, and you’re back to driving an utterly tractable car – in fact, one for whom the word ‘tractable’ is irrelevant. Combustion engines are tractable or intractable; this car’s electric motor controller just apportions its electron flow as required, in an endlessly seamless and subtle variation from zero to full power.

It’s not just the acceleration that is revolutionary. The braking – achieved primarily through regen – has the same brilliant throttle mapping, an approach that immediately allows even a newcomer to progressively brake to a near-standstill at exactly the chosen point.

A seamless, elastic and fluid power delivery that no conventional car can come remotely close to matching; a symphony on wheels to be played solely with the right foot; an utterly smooth and progressive performance than can be explosive or docile, urgent or somnambulant – literally, a driveline that completely redefines sports cars.

There’s no going back – my driving life is now changed forever.

Footnote: the Tesla drive was courtesy of Simon Hackett of the ISP, Internode.

The Best DIY Tools and Techniques

Posted on March 31st, 2009 in diesel,Driving Emotion,Economy,Mufflers,Opinion,pedal power,testing by Julian Edgar

This week in AutoSpeed we start a new series that I’ve immodestly called the ‘Ultimate DIY Automotive Modification Kit’.

It’s not the sort of material that you’d find anywhere else but at AutoSpeed – and, perhaps for that reason, longstanding readers will have seen much of the content before.

What the series does is integrate the testing and modification techniques that over the years I’ve discovered  to work for all cars.

Yes, all cars.

The Hidden Story of Reader Ratings

Posted on March 26th, 2009 in AutoSpeed,Driving Emotion,Opinion by Julian Edgar

At the end of all AutoSpeed articles is a reader rating system – you can give any article a score from 1 (bad) to 5 (excellent). As you’d expect, AutoSpeed publisher Web Publications has internal data analysis and display of these reader ratings – now totalling literally hundreds of thousands of scores.

By importing the data into a spreadsheet, I can rank all our articles in terms of numbers of ratings, averaged ratings for individual articles, and so on. I can also see changes over time in the average reader ratings for specific articles.

The other day a reader proposed that, if an article suggests to people ideas they don’t want to hear, they are more likely to give it a low score. So in other words, instead of rating articles on the basis of the quality of journalism, expression, innovative ideas (etc) that are presented, they just rate it on the basis of whether or not they agree with it.

Lies, damned lies and statistics!

Posted on March 19th, 2009 in AutoSpeed,Driving Emotion,Opinion by Julian Edgar

From here:

Although sometimes attributed to Mark Twain – because it appears in his posthumously-published Autobiography (1924) – this should more properly be ascribed to Disraeli, as indeed Twain took trouble to do: his exact words being, ‘The remark attributed to Disraeli would often apply with justice and force: “There are three kinds of lies: lies, damned lies, and statistics”.’

And there are no greater ‘damned lies’ than readership or circulation figures for magazines and other publications. To give you an idea, often when a print magazine quotes ‘readership’, they triple or even quadruple their actual sales figures. Why? Because they assume each copy is read by three or four people!

In the same way – or even, come to think of, much worse ways – web sites quote all sorts of figures for their readership.

AutoSpeed’s figures are logged by Google. I can look at our daily figures, weekly figures, annual figures – or even figures for the content, section by section. Further, through internal Web Publications data, I can view readership numbers, article by article. Finally, I can also see the number of reader ratings for each article, and what those ratings are.

Changing the way you think about electric vehicles

Posted on March 17th, 2009 in Automotive News,Driving Emotion,Economy,Electric vehicles,Global Warming,Opinion by Julian Edgar

Today’s AutoSpeed article on electric vehicles is, as the box in the article states, based on a seminar given by Dr Andrew Simpson.

Dr Simpson produced the paper that we used as the foundation for the Assessing the Alternatives article we ran about a year ago – it’s amongst the very best of articles you’ll find in deciding which fuels vehicles should be using.

Andrew Simpson has just returned to Australia from four years in the US, where he worked at the US Government National Renewable Energy Lab in Colorado, and then was a Senior R&D engineer at Tesla Motors.

I found his seminar quite riveting: it changed my views on a host of subjects relating to electric cars.

Big bolts…

Posted on March 3rd, 2009 in Driving Emotion,Materials,Opinion,pedal power by Julian Edgar

In my hand right now I am holding a bolt.

More specifically, it’s an Allen-key bolt (sometimes called a ‘cap screw’) that’s 30mm long and 10mm in diameter. It uses a metric thread.

It’s a high tensile bolt, which means – in plain terms – that it’s bloody strong.

I’ve just stepped over to the digital scales – it weighs 28 grams.

Now the reason that the bolt was sitting on my desk is that a moment or two ago I took it out of my pocket. And the reason it was in my pocket is that I’ve just stepped in from my home workshop, after finishing for the evening.

I’ve been building ‘Chalky’, my recumbent, full suspension touring bike that I hope to be one of the best human-powered touring machines in the world. Best for me, anyway.

Clock ticking for Falcon

Posted on February 26th, 2009 in Ford,Opinion by Julian Edgar

Hastened by the current world financial crisis and its effects on (particularly) US car makers, there is growing discussion in this country about the demise of the Ford Falcon model.

What to many people was unthinkable even only a year or two ago is now becoming an ‘it’ll probably happen’ scenario that while not palatable, is at least open for discussion.

Colouring your street directory green…

Posted on February 25th, 2009 in books,Economy,Global Warming,Opinion,pedal power by Julian Edgar

The boom in GPS-based navigation systems must have seen a diminution in sales of book-based street directories. I haven’t seen the figures to support that, but it’s certainly what you’d assume to be taking place.

But the companies that produce street directories (and of course in many cases also supply the software for the nav systems) are fighting back.

Wilful ignorance

Posted on February 23rd, 2009 in AutoSpeed,Driving Emotion,Opinion by Julian Edgar

As I have said in the past, AutoSpeed’s internal data generates a daily referrers’ list, where I can see discussion groups and other web pages from which readers are coming.

I read the referrers’ list (and then follow many links) at least a couple of times a day. It tells me, indirectly, which are our most popular articles for that day, and even more importantly, it also shows me how well each article is understood.

Huh – ‘how well it is understood’?

Well, the sad truth is that many AutoSpeed articles are completely misunderstood by readers. But again, that’s useful to me – if my writing hasn’t been clear enough, or the photos of sufficient quality, then I get to see the outcome expressed loud and clear.

But there’s nothing I can do about wilful ignorance.

Heading down a blind alley

Posted on February 12th, 2009 in Opinion,pedal power,Suspension by Julian Edgar

Right now my confidence is at an utterly low ebb.

I have been working on my new recumbent, touring bike design and now, after almost two months of thinking, designing and constructing, have abandoned the project in its current form.

The machine has several strict criteria it must fulfil: it needs to be able to be folded into a package (say) 1 metre x 50 cm x 40 cm; it needs to be able to carry a lot of camping gear; it needs to be stable; and it needs to weigh less than 20kg. Oh yes, and as I have previously indicated, it needs to use a recumbent seat and have a lot of gears.

My first on-screen design looked a bit like this. A delta trike, it used (two and then) three air springs, allowing interconnection of the front and rear suspensions. The machine used chain-twisting front-wheel drive and rear wheels that could lean, parallelogram-style. The leaning ability could also be locked out for low speed travel.