Carroll hadn't raced in 14 months but his A1 performances impressed team owner Michael Andretti.
Or do the narrow stretches of A1 north of Newcastle outweigh all these factors?
Finally, take the round-about route into Cairns, leaving the main A1 road to swing inland through the Atherton Tablelands.
The A1 in Cambridgeshire has been reopened following a fatal plane crash near Peterborough on Friday.
The ambulance had to race up the hard shoulder of the A1 as the road was blocked.
They include work on the M1, M62 and M5 motorways as well as the A1 and A404.
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Major routes have been treated, but the A1 north of Alnwick was badly affected by snow and ice.
Emergency officials said the crash scene on the west-bound A1 west of Vienna stretched for more than 2km (1.2 miles).
Paul Givan of the DUP asked about traffic congestion on the A1 road at Hillsborough roundabout in the rush hour.
On the roads, the Highways Agency said the A66 in Cumbria was also shut between the A1 and the A685.
The A1 and the A1M were both reopened to traffic by lunchtime on Monday after abandoned vehicles had been removed.
Ben Cairns, from North Yorkshire Fire and Rescue Service, said the incidents had begun on the A1 at 02:15 GMT.
The problem of distance worries campaigners who also point to the issue of access to Stevenage is along the busy A1.
The Peppercorn class A1 60163 Tornado is the first new steam locomotive to be built in Britain for half a century.
Moody's also cut Iceland's sovereign rating to "A1, " from "Aa1, " and said its ratings were on review, according to TradeTheNews.com.
While most have reported a shorter loading time than even the post-firmware update HD-A1, a few have had lockups and glitches.
The latest option suggests creating a three-lane Huntingdon Southern Bypass between Trinity Foot near St Ives and Ellington near the A1.
People throwing snowballs onto the A1(M) in Hertfordshire could cause "multiple fatalities" and will be prosecuted if caught, police have warned.
Capital spending, in English, is things like road building: George Osborne said he would fund upgrades to the A1, A30, and M25.
To visit some of Bulgaria's loveliest woodland stretches, head east on the main A1 motorway and veer south at Pazardzhik (114km from Sofia).
Parts of the A151, A1 and A15 were closed because of incidents, including an articulated lorry that jack-knifed on the A1 at Colsterworth.
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On the hardware side there is of course the Xbox 360 drive, as well as Toshiba's HD-A1 and HD-XA1 players already on shelves.
Large traffic queues are being reported on the A1 at Alnwick and on the A183 Coast Road at South Shields on Friday evening.
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North Yorkshire Trading Standards officers began an 18-month investigation after the gang moved in 2009 to an illegal site off the A1 at Dishforth, North Yorkshire.
Carroll, who won the A1 Championship for last year, is driving for the Andretti Autosport team in the second half of the 2010 season.
Within a month it cut Korea's long-term rating six notches, from a respectable A1 to Ba1 -- the same junk status as Barbados and Egypt.
More substantially, racetracks have been built in Abu Dhabi, Dubai, Qatar and Saudi Arabia, with new racing series (the Lumina, A1, Speedcar and GP2) added.
Starting next year Chery will build up to 100, 000 vehicles, similar to the A1, that will be sold under the Dodge brand in emerging markets.
The A1 was closed between junction 17 at Haddon and the A47 at Wansford as engineers worked to repair an electricity cable spanning the road.
Major trunk roads like the A1 are reduced to single carriageways.
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