Lexus IS 250 wheel sizes

Year	Wheel size	Offset	Bolt pattern	Tire size
Lexus IS 250 2,5L
2006	16x6.5		5x114.3	205/55R16
	16x6.5	45	5x114.3	205/55R16
	16x6.5	45		205/55R16 front
2007	16x7.5	45	5x114.3	205/55R16
	16x7.5	45		205/55R16 front
	17x8.0	45		225/45R17 front
	17x8.0	45		245/45R17 rear
	18x8.0	45		225/40R18 front
	18x8.5	45		255/40R18 rear
2008	16x7.5	45	5x114.3	205/55R16
	16x7.5	45		205/55R16 front
	17x8.0	45		225/45R17 front
	17x8.0	45		245/45R17 rear
	18x8.0	45		225/40R18 front
	18x8.5	45		255/40R18 rear
2009	16x7.5	45	5x114.3	205/55R16
	16x7.5	45		205/55R16 front
	17x8.0	45		225/45R17 front
	17x8.0	45		245/45R17 rear
	18x8.0	45		225/40R18 front
	18x8.5	45		255/40R18 rear
2010	16x7.5	45	5x114.3	205/55R16
	16x7.5	45		205/55R16 front
	17x8.0	45		225/45R17 front
	17x8.0	45		245/45R17 rear
	18x8.0	45		225/40R18 front
	18x8.5	45		255/40R18 rear

Wheel size Lexus IS 250:
PCD 5x114.3 diametr 16, width for 6.5J to 7.5J, offset 45. Similar to Toyota RAV4 III 2.0 4WD 2018

Tire size 16 to 18, width 205 to 255 and tire aspect 40 to 55.
Smallest tire size: 205/55R16, Largest: 255/40R18.