Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Roads warning as massive transformer is moved

ONE OF THE BIGGEST abnormal loads ever transported on the roads will be trundling across the west of England this weekend - at an average speed of 4mph. The giant transformer, measuring almost 330ft long and weighing around 640 tonnes, will travel the 80 miles between Didcot in Oxfordshire and Avonmouth in Bristol. Police warn the trip will affect roads in Wiltshire, Bath and north-east Somerset and south Gloucestershire between 7pm on Friday and 6pm on Sunday.

New BMW M3 and M4 engine secrets laid bare

BMW's M division has lifted the veil of secrecy on the inline six-cylinder engine bound for its upcoming M3 sedan and new-to-the-range M4 coupe and convertible, revealing a potent twin-turbocharged 3.0-liter direct injection gasoline unit that produces an official 424 hp at 7,500 rpm and what officials describe as "significantly more than 369 lb-ft" of torque. The newly developed engine, known under the internal codename S55 B30, shares its 84.0 mm bore and 89.6 mm stroke with BMW's standard turbocharged 3.0-liter in-line six-cylinder direct-injection gasoline mill, the M55 used across the German car maker's lineup, endowing the aluminum block unit with an overall swept volume of 2,979 cc. This represents a sizeable 990 cc reduction on the engine BMW's M division's new unit replaces, the S65.

Porsche plans four-door Panamera convertible

A series of European and U.S. patent applications obtained by AutoWeek show that Porsche remains committed to building a four-door convertible version of its flagship Panamera, despite recent comments from Zuffenhausen insiders indicating the car had been canceled. The new car, depicted in official drawings that accompany the latest Porsche patent applications filed in February, eschews the two-door route taken by all of its upmarket rivals for a four-door body.