West Australian Dean Herridge finished third in his Subaru Impreza WRX STI after Jason White's Lamborghini was forced out of the event at the end of the opening stage on the final day with gearbox problems.
The victory was the first by a Mitsubishi in the 17-year history of the tarmac classic, Glenney's car superior in pace and performance to that of any of his rivals. His driving performance was equally impressive. He took the lead on the famous Sidling stage on Thursday morning and never surrendered it.
Rex Broadbent was similarly dominant in the Classics competition, taking outright honours for the second successive year.
Broadbent had a setback to his plans when he was forced to borrow a tyre in Strahan to replace the one he damaged late on Saturday. He copped a two-minute penalty, which saw him slip back to second place, but quickly regained it on the first stage of the final day, enabling him to reclaim the lead and cruise to victory in Hobart.
He finished the sprint around the Domain in his 1974 Porsche 911 RS one minute 25 seconds clear of the 1989 Porsche 944 S2 of Gavin James. The man who so generously gave a tyre to Broadbent, Peter Eames, was third just four seconds further back.
Eames started the day third, 30 seconds behind James, but only six in arrears of Broadbent. Had he kept his tyres for himself he would have certainly finished second, but his gesture left him the clear winner of the unofficial "Good Sportsmanship"
The 2WD Showroom class did not go to script on the final day. Rick Bates looked like he had the title all stitched up in his Mazda3 MPS after dominating the first four days, but mechanical problems around Mt Arrowsmith saw his team mate, Scotsman Alister McRae, sweep to the lead and go on to take the title.
McRae finished over 20 minutes ahead of second placed Philip Buggee in a 2006 Fiat Punto Sport, with John Dunkley and his 2006 Peugeot 206 GTI 180 third.
Hobart's Tony Warren got a home town hero's welcome when he crossed the finish line in his Mitsubishi Lancer Evo IX to secure the 4WD Showroom title. He was a massive eight minutes 29 seconds in front of the Queensland, Scott Millar, with Malcolm Klopp third another three minutes 43 seconds back.
It is the first totally rain-free Targa in the event's long history. The conditions make Glenney's victory even more meritorious, as normally the 4WD cars thrive in wet conditions.
"The event was very tough and we probably competed under conditions which didn't suit our car, which has made the win all the more pleasing," Glenney said.
"Conditions have been hot and dry, which suits the Lamborghinis and Porsches, but we've been able to get away with a win, so we're very happy.
"I would love to come back and defend the Targa title next year and look forward to it."
Broadbent was delighted to add to his 2007 Classics victory, but recognised it had only been made possible by one of his key rivals giving him a lifeline.
"The generosity of Peter Eames was a gesture of fantastic sportsmanship by giving us one tyre and allowing us to continue,? Broadbent continued.
"We weren't hanging around this morning and we really had to go for it as we were starting the day 24 seconds behind."
"We didn't' know if we were making or losing time on the others early on, so had to drive 10/10ths for a few stages. It all worked out which is just fantastic."
Eames was happy to finish third in the Classic competition and was pleased to help his fellow Porsche driver with the tyre.
"Rex (Broadbent) and I had a discussion before the event about what tyres we were running," Eames said."He knew what tyres I had and rang last night to ask if we had any spare fronts."
"So we just gave him one of ours - and he's beaten the hell out of me with it on! It's all about having fun, and if we win we want to win on the road, not by being mean and leaving three good tyres in the back of the ute!"
McRae, who has driven in over 70 World Championship events, thought that Targa was an event to remember.
It's great to be here and win the showroom category," McRae said. "It's a great result for Mazda and it just proves a standard car straight out of the showroom with the safety equipment added is matching the times of lot more modified and high performance vehicles, so it's a great car.
"I've completely enjoyed Targa Tasmania. I came down here with a completely open mind and didn't know what to expect, but I've enjoyed every minute of it."
Warren's performance in the inaugural Showroom class impressed many observers and came as a shock to the Seven Mile Beach driver.
"I'm totally surprised by the margin, and didn't expect it at all," Warren said.
"I thought if we maintained yesterday's lead we would have been fine, so our speed today has blown me away.
"The car has been excellent with no problems at all. We've had no hiccups at all and it's been as near to perfect as we could wish for."
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